{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-27018", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-19T14:20:24.209Z", "datePublished": "2024-05-01T05:30:06.472Z", "dateUpdated": "2024-11-05T09:20:03.624Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-05T09:20:03.624Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: br_netfilter: skip conntrack input hook for promisc packets\n\nFor historical reasons, when bridge device is in promisc mode, packets\nthat are directed to the taps follow bridge input hook path. This patch\nadds a workaround to reset conntrack for these packets.\n\nJianbo Liu reports warning splats in their test infrastructure where\ncloned packets reach the br_netfilter input hook to confirm the\nconntrack object.\n\nScratch one bit from BR_INPUT_SKB_CB to annotate that this packet has\nreached the input hook because it is passed up to the bridge device to\nreach the taps.\n\n[ 57.571874] WARNING: CPU: 1 PID: 0 at net/bridge/br_netfilter_hooks.c:616 br_nf_local_in+0x157/0x180 [br_netfilter]\n[ 57.572749] Modules linked in: xt_MASQUERADE nf_conntrack_netlink nfnetlink iptable_nat xt_addrtype xt_conntrack nf_nat br_netfilter rpcsec_gss_krb5 auth_rpcgss oid_registry overlay rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_isc si ib_umad rdma_cm ib_ipoib iw_cm ib_cm mlx5_ib ib_uverbs ib_core mlx5ctl mlx5_core\n[ 57.575158] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0+ #19\n[ 57.575700] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n[ 57.576662] RIP: 0010:br_nf_local_in+0x157/0x180 [br_netfilter]\n[ 57.577195] Code: fe ff ff 41 bd 04 00 00 00 be 04 00 00 00 e9 4a ff ff ff be 04 00 00 00 48 89 ef e8 f3 a9 3c e1 66 83 ad b4 00 00 00 04 eb 91 <0f> 0b e9 f1 fe ff ff 0f 0b e9 df fe ff ff 48 89 df e8 b3 53 47 e1\n[ 57.578722] RSP: 0018:ffff88885f845a08 EFLAGS: 00010202\n[ 57.579207] RAX: 0000000000000002 RBX: ffff88812dfe8000 RCX: 0000000000000000\n[ 57.579830] RDX: ffff88885f845a60 RSI: ffff8881022dc300 RDI: 0000000000000000\n[ 57.580454] RBP: ffff88885f845a60 R08: 0000000000000001 R09: 0000000000000003\n[ 57.581076] R10: 00000000ffff1300 R11: 0000000000000002 R12: 0000000000000000\n[ 57.581695] R13: ffff8881047ffe00 R14: ffff888108dbee00 R15: ffff88814519b800\n[ 57.582313] FS: 0000000000000000(0000) GS:ffff88885f840000(0000) knlGS:0000000000000000\n[ 57.583040] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 57.583564] CR2: 000000c4206aa000 CR3: 0000000103847001 CR4: 0000000000370eb0\n[ 57.584194] DR0: 0000000000000000 DR1: 0000000000000000 DR2:\n0000000000000000\n[ 57.584820] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:\n0000000000000400\n[ 57.585440] Call Trace:\n[ 57.585721] <IRQ>\n[ 57.585976] ? __warn+0x7d/0x130\n[ 57.586323] ? br_nf_local_in+0x157/0x180 [br_netfilter]\n[ 57.586811] ? report_bug+0xf1/0x1c0\n[ 57.587177] ? handle_bug+0x3f/0x70\n[ 57.587539] ? exc_invalid_op+0x13/0x60\n[ 57.587929] ? asm_exc_invalid_op+0x16/0x20\n[ 57.588336] ? br_nf_local_in+0x157/0x180 [br_netfilter]\n[ 57.588825] nf_hook_slow+0x3d/0xd0\n[ 57.589188] ? br_handle_vlan+0x4b/0x110\n[ 57.589579] br_pass_frame_up+0xfc/0x150\n[ 57.589970] ? br_port_flags_change+0x40/0x40\n[ 57.590396] br_handle_frame_finish+0x346/0x5e0\n[ 57.590837] ? ipt_do_table+0x32e/0x430\n[ 57.591221] ? br_handle_local_finish+0x20/0x20\n[ 57.591656] br_nf_hook_thresh+0x4b/0xf0 [br_netfilter]\n[ 57.592286] ? br_handle_local_finish+0x20/0x20\n[ 57.592802] br_nf_pre_routing_finish+0x178/0x480 [br_netfilter]\n[ 57.593348] ? br_handle_local_finish+0x20/0x20\n[ 57.593782] ? nf_nat_ipv4_pre_routing+0x25/0x60 [nf_nat]\n[ 57.594279] br_nf_pre_routing+0x24c/0x550 [br_netfilter]\n[ 57.594780] ? br_nf_hook_thresh+0xf0/0xf0 [br_netfilter]\n[ 57.595280] br_handle_frame+0x1f3/0x3d0\n[ 57.595676] ? br_handle_local_finish+0x20/0x20\n[ 57.596118] ? br_handle_frame_finish+0x5e0/0x5e0\n[ 57.596566] __netif_receive_skb_core+0x25b/0xfc0\n[ 57.597017] ? __napi_build_skb+0x37/0x40\n[ 57.597418] __netif_receive_skb_list_core+0xfb/0x220"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bridge/br_input.c", "net/bridge/br_netfilter_hooks.c", "net/bridge/br_private.h", "net/bridge/netfilter/nf_conntrack_bridge.c"], "versions": [{"version": "7c3f28599652", "lessThan": "dceb683ab87c", "status": "affected", "versionType": "git"}, {"version": "2b1414d5e94e", "lessThan": "b13db0d16bc7", "status": "affected", "versionType": "git"}, {"version": "80cd0487f630", "lessThan": "3f59ac29dea0", "status": "affected", "versionType": "git"}, {"version": "62e7151ae3eb", "lessThan": "43193174510e", "status": "affected", "versionType": "git"}, {"version": "62e7151ae3eb", "lessThan": "751de2012eaf", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bridge/br_input.c", "net/bridge/br_netfilter_hooks.c", "net/bridge/br_private.h", "net/bridge/netfilter/nf_conntrack_bridge.c"], "versions": [{"version": "6.8", "status": "affected"}, {"version": "0", "lessThan": "6.8", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.157", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.88", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.29", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.8.8", "lessThanOrEqual": "6.8.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.9", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/dceb683ab87ca3666a9bb5c0158528b646faedc4"}, {"url": "https://git.kernel.org/stable/c/b13db0d16bc7b2a52abcf5cb71334f63faa5dbd6"}, {"url": "https://git.kernel.org/stable/c/3f59ac29dea0921637053908fe99268d157bbb9d"}, {"url": "https://git.kernel.org/stable/c/43193174510ea4f3ce09b796e559a2fd9f148615"}, {"url": "https://git.kernel.org/stable/c/751de2012eafa4d46d8081056761fa0e9cc8a178"}], "title": "netfilter: br_netfilter: skip conntrack input hook for promisc packets", "x_generator": {"engine": "bippy-9e1c9544281a"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-27018", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-05-23T17:22:22.725918Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:46:18.755Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T00:21:05.873Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/dceb683ab87ca3666a9bb5c0158528b646faedc4", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/b13db0d16bc7b2a52abcf5cb71334f63faa5dbd6", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/3f59ac29dea0921637053908fe99268d157bbb9d", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/43193174510ea4f3ce09b796e559a2fd9f148615", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/751de2012eafa4d46d8081056761fa0e9cc8a178", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/dceb683ab87ca3666a9bb5c0158528b646faedc4", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/b13db0d16bc7b2a52abcf5cb71334f63faa5dbd6", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/3f59ac29dea0921637053908fe99268d157bbb9d", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/43193174510ea4f3ce09b796e559a2fd9f148615", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/751de2012eafa4d46d8081056761fa0e9cc8a178", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T00:21:05.873Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-27018", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-05-23T17:22:22.725918Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-05-23T19:01:25.753Z"}, "title": "CISA ADP Vulnrichment"}], "cna": {"title": "netfilter: br_netfilter: skip conntrack input hook for promisc packets", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "7c3f28599652", "lessThan": "dceb683ab87c", "versionType": "git"}, {"status": "affected", "version": "2b1414d5e94e", "lessThan": "b13db0d16bc7", "versionType": "git"}, {"status": "affected", "version": "80cd0487f630", "lessThan": "3f59ac29dea0", "versionType": "git"}, {"status": "affected", "version": "62e7151ae3eb", "lessThan": "43193174510e", "versionType": "git"}, {"status": "affected", "version": "62e7151ae3eb", "lessThan": "751de2012eaf", "versionType": "git"}], "programFiles": ["net/bridge/br_input.c", "net/bridge/br_netfilter_hooks.c", "net/bridge/br_private.h", "net/bridge/netfilter/nf_conntrack_bridge.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.8"}, {"status": "unaffected", "version": "0", "lessThan": "6.8", "versionType": "semver"}, {"status": "unaffected", "version": "5.15.157", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.88", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.29", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.8.8", "versionType": "semver", "lessThanOrEqual": "6.8.*"}, {"status": "unaffected", "version": "6.9", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/bridge/br_input.c", "net/bridge/br_netfilter_hooks.c", "net/bridge/br_private.h", "net/bridge/netfilter/nf_conntrack_bridge.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/dceb683ab87ca3666a9bb5c0158528b646faedc4"}, {"url": "https://git.kernel.org/stable/c/b13db0d16bc7b2a52abcf5cb71334f63faa5dbd6"}, {"url": "https://git.kernel.org/stable/c/3f59ac29dea0921637053908fe99268d157bbb9d"}, {"url": "https://git.kernel.org/stable/c/43193174510ea4f3ce09b796e559a2fd9f148615"}, {"url": "https://git.kernel.org/stable/c/751de2012eafa4d46d8081056761fa0e9cc8a178"}], "x_generator": {"engine": "bippy-9e1c9544281a"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: br_netfilter: skip conntrack input hook for promisc packets\n\nFor historical reasons, when bridge device is in promisc mode, packets\nthat are directed to the taps follow bridge input hook path. This patch\nadds a workaround to reset conntrack for these packets.\n\nJianbo Liu reports warning splats in their test infrastructure where\ncloned packets reach the br_netfilter input hook to confirm the\nconntrack object.\n\nScratch one bit from BR_INPUT_SKB_CB to annotate that this packet has\nreached the input hook because it is passed up to the bridge device to\nreach the taps.\n\n[ 57.571874] WARNING: CPU: 1 PID: 0 at net/bridge/br_netfilter_hooks.c:616 br_nf_local_in+0x157/0x180 [br_netfilter]\n[ 57.572749] Modules linked in: xt_MASQUERADE nf_conntrack_netlink nfnetlink iptable_nat xt_addrtype xt_conntrack nf_nat br_netfilter rpcsec_gss_krb5 auth_rpcgss oid_registry overlay rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_isc si ib_umad rdma_cm ib_ipoib iw_cm ib_cm mlx5_ib ib_uverbs ib_core mlx5ctl mlx5_core\n[ 57.575158] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0+ #19\n[ 57.575700] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n[ 57.576662] RIP: 0010:br_nf_local_in+0x157/0x180 [br_netfilter]\n[ 57.577195] Code: fe ff ff 41 bd 04 00 00 00 be 04 00 00 00 e9 4a ff ff ff be 04 00 00 00 48 89 ef e8 f3 a9 3c e1 66 83 ad b4 00 00 00 04 eb 91 <0f> 0b e9 f1 fe ff ff 0f 0b e9 df fe ff ff 48 89 df e8 b3 53 47 e1\n[ 57.578722] RSP: 0018:ffff88885f845a08 EFLAGS: 00010202\n[ 57.579207] RAX: 0000000000000002 RBX: ffff88812dfe8000 RCX: 0000000000000000\n[ 57.579830] RDX: ffff88885f845a60 RSI: ffff8881022dc300 RDI: 0000000000000000\n[ 57.580454] RBP: ffff88885f845a60 R08: 0000000000000001 R09: 0000000000000003\n[ 57.581076] R10: 00000000ffff1300 R11: 0000000000000002 R12: 0000000000000000\n[ 57.581695] R13: ffff8881047ffe00 R14: ffff888108dbee00 R15: ffff88814519b800\n[ 57.582313] FS: 0000000000000000(0000) GS:ffff88885f840000(0000) knlGS:0000000000000000\n[ 57.583040] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 57.583564] CR2: 000000c4206aa000 CR3: 0000000103847001 CR4: 0000000000370eb0\n[ 57.584194] DR0: 0000000000000000 DR1: 0000000000000000 DR2:\n0000000000000000\n[ 57.584820] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:\n0000000000000400\n[ 57.585440] Call Trace:\n[ 57.585721] <IRQ>\n[ 57.585976] ? __warn+0x7d/0x130\n[ 57.586323] ? br_nf_local_in+0x157/0x180 [br_netfilter]\n[ 57.586811] ? report_bug+0xf1/0x1c0\n[ 57.587177] ? handle_bug+0x3f/0x70\n[ 57.587539] ? exc_invalid_op+0x13/0x60\n[ 57.587929] ? asm_exc_invalid_op+0x16/0x20\n[ 57.588336] ? br_nf_local_in+0x157/0x180 [br_netfilter]\n[ 57.588825] nf_hook_slow+0x3d/0xd0\n[ 57.589188] ? br_handle_vlan+0x4b/0x110\n[ 57.589579] br_pass_frame_up+0xfc/0x150\n[ 57.589970] ? br_port_flags_change+0x40/0x40\n[ 57.590396] br_handle_frame_finish+0x346/0x5e0\n[ 57.590837] ? ipt_do_table+0x32e/0x430\n[ 57.591221] ? br_handle_local_finish+0x20/0x20\n[ 57.591656] br_nf_hook_thresh+0x4b/0xf0 [br_netfilter]\n[ 57.592286] ? br_handle_local_finish+0x20/0x20\n[ 57.592802] br_nf_pre_routing_finish+0x178/0x480 [br_netfilter]\n[ 57.593348] ? br_handle_local_finish+0x20/0x20\n[ 57.593782] ? nf_nat_ipv4_pre_routing+0x25/0x60 [nf_nat]\n[ 57.594279] br_nf_pre_routing+0x24c/0x550 [br_netfilter]\n[ 57.594780] ? br_nf_hook_thresh+0xf0/0xf0 [br_netfilter]\n[ 57.595280] br_handle_frame+0x1f3/0x3d0\n[ 57.595676] ? br_handle_local_finish+0x20/0x20\n[ 57.596118] ? br_handle_frame_finish+0x5e0/0x5e0\n[ 57.596566] __netif_receive_skb_core+0x25b/0xfc0\n[ 57.597017] ? __napi_build_skb+0x37/0x40\n[ 57.597418] __netif_receive_skb_list_core+0xfb/0x220"}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-05T09:20:03.624Z"}}}, "cveMetadata": {"cveId": "CVE-2024-27018", "state": "PUBLISHED", "dateUpdated": "2024-11-05T09:20:03.624Z", "dateReserved": "2024-02-19T14:20:24.209Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-05-01T05:30:06.472Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "CB2F4D25-B857-48D0-BBDF-5EEEB37BE055", "versionEndExcluding": "5.15.157", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B665F958-644E-434D-A78D-CCD1628D1774", "versionEndExcluding": "6.1.88", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0999E154-1E68-41FA-8DE3-9A735E382224", "versionEndExcluding": "6.6.29", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "673B3328-389D-41A4-9617-669298635262", "versionEndExcluding": "6.8.8", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*", "matchCriteriaId": "22BEDD49-2C6D-402D-9DBF-6646F6ECD10B", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*", "matchCriteriaId": "DF73CB2A-DFFD-46FB-9BFE-AA394F27EA37", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:*", "matchCriteriaId": "52048DDA-FC5A-4363-95A0-A6357B4D7F8C", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:*", "matchCriteriaId": "A06B2CCF-3F43-4FA9-8773-C83C3F5764B2", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*", "matchCriteriaId": "CC559B26-5DFC-4B7A-A27C-B77DE755DFF9", "vulnerable": true}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*", "matchCriteriaId": "B8EDB836-4E6A-4B71-B9B2-AA3E03E0F646", "vulnerable": true}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:*", "matchCriteriaId": "CA277A6C-83EC-4536-9125-97B84C4FAF59", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: br_netfilter: skip conntrack input hook for promisc packets\n\nFor historical reasons, when bridge device is in promisc mode, packets\nthat are directed to the taps follow bridge input hook path. This patch\nadds a workaround to reset conntrack for these packets.\n\nJianbo Liu reports warning splats in their test infrastructure where\ncloned packets reach the br_netfilter input hook to confirm the\nconntrack object.\n\nScratch one bit from BR_INPUT_SKB_CB to annotate that this packet has\nreached the input hook because it is passed up to the bridge device to\nreach the taps.\n\n[ 57.571874] WARNING: CPU: 1 PID: 0 at net/bridge/br_netfilter_hooks.c:616 br_nf_local_in+0x157/0x180 [br_netfilter]\n[ 57.572749] Modules linked in: xt_MASQUERADE nf_conntrack_netlink nfnetlink iptable_nat xt_addrtype xt_conntrack nf_nat br_netfilter rpcsec_gss_krb5 auth_rpcgss oid_registry overlay rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_isc si ib_umad rdma_cm ib_ipoib iw_cm ib_cm mlx5_ib ib_uverbs ib_core mlx5ctl mlx5_core\n[ 57.575158] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0+ #19\n[ 57.575700] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n[ 57.576662] RIP: 0010:br_nf_local_in+0x157/0x180 [br_netfilter]\n[ 57.577195] Code: fe ff ff 41 bd 04 00 00 00 be 04 00 00 00 e9 4a ff ff ff be 04 00 00 00 48 89 ef e8 f3 a9 3c e1 66 83 ad b4 00 00 00 04 eb 91 <0f> 0b e9 f1 fe ff ff 0f 0b e9 df fe ff ff 48 89 df e8 b3 53 47 e1\n[ 57.578722] RSP: 0018:ffff88885f845a08 EFLAGS: 00010202\n[ 57.579207] RAX: 0000000000000002 RBX: ffff88812dfe8000 RCX: 0000000000000000\n[ 57.579830] RDX: ffff88885f845a60 RSI: ffff8881022dc300 RDI: 0000000000000000\n[ 57.580454] RBP: ffff88885f845a60 R08: 0000000000000001 R09: 0000000000000003\n[ 57.581076] R10: 00000000ffff1300 R11: 0000000000000002 R12: 0000000000000000\n[ 57.581695] R13: ffff8881047ffe00 R14: ffff888108dbee00 R15: ffff88814519b800\n[ 57.582313] FS: 0000000000000000(0000) GS:ffff88885f840000(0000) knlGS:0000000000000000\n[ 57.583040] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 57.583564] CR2: 000000c4206aa000 CR3: 0000000103847001 CR4: 0000000000370eb0\n[ 57.584194] DR0: 0000000000000000 DR1: 0000000000000000 DR2:\n0000000000000000\n[ 57.584820] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:\n0000000000000400\n[ 57.585440] Call Trace:\n[ 57.585721] <IRQ>\n[ 57.585976] ? __warn+0x7d/0x130\n[ 57.586323] ? br_nf_local_in+0x157/0x180 [br_netfilter]\n[ 57.586811] ? report_bug+0xf1/0x1c0\n[ 57.587177] ? handle_bug+0x3f/0x70\n[ 57.587539] ? exc_invalid_op+0x13/0x60\n[ 57.587929] ? asm_exc_invalid_op+0x16/0x20\n[ 57.588336] ? br_nf_local_in+0x157/0x180 [br_netfilter]\n[ 57.588825] nf_hook_slow+0x3d/0xd0\n[ 57.589188] ? br_handle_vlan+0x4b/0x110\n[ 57.589579] br_pass_frame_up+0xfc/0x150\n[ 57.589970] ? br_port_flags_change+0x40/0x40\n[ 57.590396] br_handle_frame_finish+0x346/0x5e0\n[ 57.590837] ? ipt_do_table+0x32e/0x430\n[ 57.591221] ? br_handle_local_finish+0x20/0x20\n[ 57.591656] br_nf_hook_thresh+0x4b/0xf0 [br_netfilter]\n[ 57.592286] ? br_handle_local_finish+0x20/0x20\n[ 57.592802] br_nf_pre_routing_finish+0x178/0x480 [br_netfilter]\n[ 57.593348] ? br_handle_local_finish+0x20/0x20\n[ 57.593782] ? nf_nat_ipv4_pre_routing+0x25/0x60 [nf_nat]\n[ 57.594279] br_nf_pre_routing+0x24c/0x550 [br_netfilter]\n[ 57.594780] ? br_nf_hook_thresh+0xf0/0xf0 [br_netfilter]\n[ 57.595280] br_handle_frame+0x1f3/0x3d0\n[ 57.595676] ? br_handle_local_finish+0x20/0x20\n[ 57.596118] ? br_handle_frame_finish+0x5e0/0x5e0\n[ 57.596566] __netif_receive_skb_core+0x25b/0xfc0\n[ 57.597017] ? __napi_build_skb+0x37/0x40\n[ 57.597418] __netif_receive_skb_list_core+0xfb/0x220"}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: netfilter: br_netfilter: omitir el enlace de entrada conntrack para paquetes promiscos. Por razones hist\u00f3ricas, cuando el dispositivo puente est\u00e1 en modo promisco, los paquetes que se dirigen a los taps siguen la ruta del enlace de entrada del puente. Este parche agrega una workaround para restablecer el seguimiento de conexi\u00f3n de estos paquetes. Jianbo Liu informa se\u00f1ales de advertencia en su infraestructura de prueba donde los paquetes clonados llegan al enlace de entrada br_netfilter para confirmar el objeto conntrack. Elimine un bit de BR_INPUT_SKB_CB para anotar que este paquete ha llegado al gancho de entrada porque pasa al dispositivo puente para llegar a las derivaciones. [57.571874] ADVERTENCIA: CPU: 1 PID: 0 en net/bridge/br_netfilter_hooks.c:616 br_nf_local_in+0x157/0x180 [br_netfilter] [57.572749] M\u00f3dulos vinculados en: xt_MASQUERADE nf_conntrack_netlink nfnetlink iptable_nat escriba xt_conntrack nf_nat br_netfilter rpcsec_gss_krb5 auth_rpcgss oid_registry superposici\u00f3n rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_isc si ib_umad rdma_cm ib_ipoib iw_cm ib_cm mlx5_ib ib_uverbs ib_core mlx5ctl mlx5_core [ 57.575158] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0+ #19 [ 57.575700] Nombre de hardware: PC est\u00e1ndar UEM (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 01/04/2014 [ 57.576662] RIP: 0010:br_nf_local_in+0x157/0x180 [br_netfilter] [ 57.577195] C\u00f3digo: fe ff ff 41 04 00 00 00 be 04 00 00 00 e9 4a ff ff ff be 04 00 00 00 48 89 ef e8 f3 a9 3c e1 66 83 ad b4 00 00 00 04 eb 91 &lt;0f&gt; 0b e9 f1 fe ff ff 0f 0b e9 df fe ff ff 48 89 df e8 b3 53 47 e1 [ 57.578722] RSP: 0018:ffff88885f845a08 EFLAGS: 00010202 [ 57.579207] RAX: 0000000000000002 RBX: ffff88812dfe8000 RCX: 0000000000000000 [ 57.579830] RDX: ffff88885f845a60 RSI: ffff8881022dc300 RDI: 0000000000000000 [ 57.580454] RBP: ffff88885f845a60 R08: 0000000000000001 R09: 0000000000000003 [ 57.581076] R10: 00000000ffff1300 R11: 0000000000000002 R12: 0000000 [ 57.581695] R13: ffff8881047ffe00 R14: ffff888108dbee00 R15: ffff88814519b800 [ 57.582313] FS: 0000000000000000(0000) GS:ffff88885f8400 00(0000) knlGS:0000000000000000 [ 57.583040] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.583564] CR2: 000000c4206aa000 CR3: 0000000103847001 CR4: 0000000000370eb0 [ 57.584194] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.584820] DR3: 00000000000000000 DR6: 00000000ffe0ff0 0000000000000400 [ 57.585440] Seguimiento de llamadas: [ 57.585721] [ 57.585976] ? __advertir+0x7d/0x130 [ 57.586323] ? br_nf_local_in+0x157/0x180 [br_netfilter] [57.586811]? report_bug+0xf1/0x1c0 [57.587177]? handle_bug+0x3f/0x70 [57.587539]? exc_invalid_op+0x13/0x60 [57.587929]? asm_exc_invalid_op+0x16/0x20 [57.588336]? br_nf_local_in+0x157/0x180 [br_netfilter] [ 57.588825] nf_hook_slow+0x3d/0xd0 [ 57.589188] ? br_handle_vlan+0x4b/0x110 [ 57.589579] br_pass_frame_up+0xfc/0x150 [ 57.589970] ? br_port_flags_change+0x40/0x40 [ 57.590396] br_handle_frame_finish+0x346/0x5e0 [ 57.590837] ? ipt_do_table+0x32e/0x430 [57.591221]? br_handle_local_finish+0x20/0x20 [ 57.591656] br_nf_hook_thresh+0x4b/0xf0 [br_netfilter] [ 57.592286] ? br_handle_local_finish+0x20/0x20 [ 57.592802] br_nf_pre_routing_finish+0x178/0x480 [br_netfilter] [ 57.593348] ? br_handle_local_finish+0x20/0x20 [ 57.593782] ? nf_nat_ipv4_pre_routing+0x25/0x60 [nf_nat] [ 57.594279] br_nf_pre_routing+0x24c/0x550 [br_netfilter] [ 57.594780] ? br_nf_hook_thresh+0xf0/0xf0 [br_netfilter] [ 57.595280] br_handle_frame+0x1f3/0x3d0 [ 57.595676] ? br_handle_local_finish+0x20/0x20 [ 57.596118] ? br_handle_frame_finish+0x5e0/0x5e0 [ 57.596566] __netif_receive_skb_core+0x25b/0xfc0 [ 57.597017] ? __napi_build_skb+0x37/0x40 [ 57.597418] __netif_receive_skb_list_core+0xfb/0x220"}], "id": "CVE-2024-27018", "lastModified": "2024-11-21T09:03:40.363", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-05-01T06:15:20.600", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3f59ac29dea0921637053908fe99268d157bbb9d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/43193174510ea4f3ce09b796e559a2fd9f148615"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/751de2012eafa4d46d8081056761fa0e9cc8a178"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b13db0d16bc7b2a52abcf5cb71334f63faa5dbd6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/dceb683ab87ca3666a9bb5c0158528b646faedc4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3f59ac29dea0921637053908fe99268d157bbb9d"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/43193174510ea4f3ce09b796e559a2fd9f148615"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/751de2012eafa4d46d8081056761fa0e9cc8a178"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b13db0d16bc7b2a52abcf5cb71334f63faa5dbd6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/dceb683ab87ca3666a9bb5c0158528b646faedc4"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: netfilter: br_netfilter: skip conntrack input hook for promisc packets", "id": "2278260", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2278260"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnetfilter: br_netfilter: skip conntrack input hook for promisc packets\nFor historical reasons, when bridge device is in promisc mode, packets\nthat are directed to the taps follow bridge input hook path. This patch\nadds a workaround to reset conntrack for these packets.\nJianbo Liu reports warning splats in their test infrastructure where\ncloned packets reach the br_netfilter input hook to confirm the\nconntrack object.\nScratch one bit from BR_INPUT_SKB_CB to annotate that this packet has\nreached the input hook because it is passed up to the bridge device to\nreach the taps.\n[ 57.571874] WARNING: CPU: 1 PID: 0 at net/bridge/br_netfilter_hooks.c:616 br_nf_local_in+0x157/0x180 [br_netfilter]\n[ 57.572749] Modules linked in: xt_MASQUERADE nf_conntrack_netlink nfnetlink iptable_nat xt_addrtype xt_conntrack nf_nat br_netfilter rpcsec_gss_krb5 auth_rpcgss oid_registry overlay rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_isc si ib_umad rdma_cm ib_ipoib iw_cm ib_cm mlx5_ib ib_uverbs ib_core mlx5ctl mlx5_core\n[ 57.575158] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0+ #19\n[ 57.575700] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n[ 57.576662] RIP: 0010:br_nf_local_in+0x157/0x180 [br_netfilter]\n[ 57.577195] Code: fe ff ff 41 bd 04 00 00 00 be 04 00 00 00 e9 4a ff ff ff be 04 00 00 00 48 89 ef e8 f3 a9 3c e1 66 83 ad b4 00 00 00 04 eb 91 <0f> 0b e9 f1 fe ff ff 0f 0b e9 df fe ff ff 48 89 df e8 b3 53 47 e1\n[ 57.578722] RSP: 0018:ffff88885f845a08 EFLAGS: 00010202\n[ 57.579207] RAX: 0000000000000002 RBX: ffff88812dfe8000 RCX: 0000000000000000\n[ 57.579830] RDX: ffff88885f845a60 RSI: ffff8881022dc300 RDI: 0000000000000000\n[ 57.580454] RBP: ffff88885f845a60 R08: 0000000000000001 R09: 0000000000000003\n[ 57.581076] R10: 00000000ffff1300 R11: 0000000000000002 R12: 0000000000000000\n[ 57.581695] R13: ffff8881047ffe00 R14: ffff888108dbee00 R15: ffff88814519b800\n[ 57.582313] FS: 0000000000000000(0000) GS:ffff88885f840000(0000) knlGS:0000000000000000\n[ 57.583040] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 57.583564] CR2: 000000c4206aa000 CR3: 0000000103847001 CR4: 0000000000370eb0\n[ 57.584194] DR0: 0000000000000000 DR1: 0000000000000000 DR2:\n0000000000000000\n[ 57.584820] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:\n0000000000000400\n[ 57.585440] Call Trace:\n[ 57.585721] <IRQ>\n[ 57.585976] ? __warn+0x7d/0x130\n[ 57.586323] ? br_nf_local_in+0x157/0x180 [br_netfilter]\n[ 57.586811] ? report_bug+0xf1/0x1c0\n[ 57.587177] ? handle_bug+0x3f/0x70\n[ 57.587539] ? exc_invalid_op+0x13/0x60\n[ 57.587929] ? asm_exc_invalid_op+0x16/0x20\n[ 57.588336] ? br_nf_local_in+0x157/0x180 [br_netfilter]\n[ 57.588825] nf_hook_slow+0x3d/0xd0\n[ 57.589188] ? br_handle_vlan+0x4b/0x110\n[ 57.589579] br_pass_frame_up+0xfc/0x150\n[ 57.589970] ? br_port_flags_change+0x40/0x40\n[ 57.590396] br_handle_frame_finish+0x346/0x5e0\n[ 57.590837] ? ipt_do_table+0x32e/0x430\n[ 57.591221] ? br_handle_local_finish+0x20/0x20\n[ 57.591656] br_nf_hook_thresh+0x4b/0xf0 [br_netfilter]\n[ 57.592286] ? br_handle_local_finish+0x20/0x20\n[ 57.592802] br_nf_pre_routing_finish+0x178/0x480 [br_netfilter]\n[ 57.593348] ? br_handle_local_finish+0x20/0x20\n[ 57.593782] ? nf_nat_ipv4_pre_routing+0x25/0x60 [nf_nat]\n[ 57.594279] br_nf_pre_routing+0x24c/0x550 [br_netfilter]\n[ 57.594780] ? br_nf_hook_thresh+0xf0/0xf0 [br_netfilter]\n[ 57.595280] br_handle_frame+0x1f3/0x3d0\n[ 57.595676] ? br_handle_local_finish+0x20/0x20\n[ 57.596118] ? br_handle_frame_finish+0x5e0/0x5e0\n[ 57.596566] __netif_receive_skb_core+0x25b/0xfc0\n[ 57.597017] ? __napi_build_skb+0x37/0x40\n[ 57.597418] __netif_receive_skb_list_core+0xfb/0x220"], "name": "CVE-2024-27018", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-27018\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-27018\nhttps://lore.kernel.org/linux-cve-announce/2024050150-CVE-2024-27018-d8a7@gregkh/T"], "threat_severity": "Moderate", "upstream_fix": "kernel 5.15.157, kernel 6.1.88, kernel 6.6.29, kernel 6.8.8, kernel 6.9-rc5"}