{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-41006", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-07-12T12:17:45.610Z", "datePublished": "2024-07-12T12:44:41.176Z", "dateUpdated": "2024-09-11T17:34:18.546Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-07-15T06:53:18.564Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetrom: Fix a memory leak in nr_heartbeat_expiry()\n\nsyzbot reported a memory leak in nr_create() [0].\n\nCommit 409db27e3a2e (\"netrom: Fix use-after-free of a listening socket.\")\nadded sock_hold() to the nr_heartbeat_expiry() function, where\na) a socket has a SOCK_DESTROY flag or\nb) a listening socket has a SOCK_DEAD flag.\n\nBut in the case \"a,\" when the SOCK_DESTROY flag is set, the file descriptor\nhas already been closed and the nr_release() function has been called.\nSo it makes no sense to hold the reference count because no one will\ncall another nr_destroy_socket() and put it as in the case \"b.\"\n\nnr_connect\n nr_establish_data_link\n nr_start_heartbeat\n\nnr_release\n switch (nr->state)\n case NR_STATE_3\n nr->state = NR_STATE_2\n sock_set_flag(sk, SOCK_DESTROY);\n\n nr_rx_frame\n nr_process_rx_frame\n switch (nr->state)\n case NR_STATE_2\n nr_state2_machine()\n nr_disconnect()\n nr_sk(sk)->state = NR_STATE_0\n sock_set_flag(sk, SOCK_DEAD)\n\n nr_heartbeat_expiry\n switch (nr->state)\n case NR_STATE_0\n if (sock_flag(sk, SOCK_DESTROY) ||\n (sk->sk_state == TCP_LISTEN\n && sock_flag(sk, SOCK_DEAD)))\n sock_hold() // ( !!! )\n nr_destroy_socket()\n\nTo fix the memory leak, let's call sock_hold() only for a listening socket.\n\nFound by InfoTeCS on behalf of Linux Verification Center\n(linuxtesting.org) with Syzkaller.\n\n[0]: https://syzkaller.appspot.com/bug?extid=d327a1f3b12e1e206c16"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netrom/nr_timer.c"], "versions": [{"version": "a31caf5779ac", "lessThan": "d616876256b3", "status": "affected", "versionType": "git"}, {"version": "fe9b9e621ceb", "lessThan": "e07a9c2a850c", "status": "affected", "versionType": "git"}, {"version": "7de16d75b20a", "lessThan": "5391f9db2cab", "status": "affected", "versionType": "git"}, {"version": "d2d3ab1b1de3", "lessThan": "280cf1173726", "status": "affected", "versionType": "git"}, {"version": "51e394c6f81a", "lessThan": "a02fd5d775cf", "status": "affected", "versionType": "git"}, {"version": "409db27e3a2e", "lessThan": "b6ebe4fed73e", "status": "affected", "versionType": "git"}, {"version": "409db27e3a2e", "lessThan": "d377f5a28332", "status": "affected", "versionType": "git"}, {"version": "409db27e3a2e", "lessThan": "0b9130247f3b", "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/netrom/nr_timer.c"], "versions": [{"version": "6.2", "status": "affected"}, {"version": "0", "lessThan": "6.2", "status": "unaffected", "versionType": "custom"}, {"version": "4.19.317", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.4.279", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.10.221", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.15.162", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.1.96", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.6.36", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.9.7", "lessThanOrEqual": "6.9.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.10", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/d616876256b38ecf9a1a1c7d674192c5346bc69c"}, {"url": "https://git.kernel.org/stable/c/e07a9c2a850cdebf625e7a1b8171bd23a8554313"}, {"url": "https://git.kernel.org/stable/c/5391f9db2cab5ef1cb411be1ab7dbec728078fba"}, {"url": "https://git.kernel.org/stable/c/280cf1173726a7059b628c610c71050d5c0b6937"}, {"url": "https://git.kernel.org/stable/c/a02fd5d775cf9787ee7698c797e20f2fa13d2e2b"}, {"url": "https://git.kernel.org/stable/c/b6ebe4fed73eedeb73f4540f8edc4871945474c8"}, {"url": "https://git.kernel.org/stable/c/d377f5a28332954b19e373d36823e59830ab1712"}, {"url": "https://git.kernel.org/stable/c/0b9130247f3b6a1122478471ff0e014ea96bb735"}], "title": "netrom: Fix a memory leak in nr_heartbeat_expiry()", "x_generator": {"engine": "bippy-c9c4e1df01b2"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T04:39:56.157Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/d616876256b38ecf9a1a1c7d674192c5346bc69c", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/e07a9c2a850cdebf625e7a1b8171bd23a8554313", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/5391f9db2cab5ef1cb411be1ab7dbec728078fba", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/280cf1173726a7059b628c610c71050d5c0b6937", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/a02fd5d775cf9787ee7698c797e20f2fa13d2e2b", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/b6ebe4fed73eedeb73f4540f8edc4871945474c8", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/d377f5a28332954b19e373d36823e59830ab1712", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/0b9130247f3b6a1122478471ff0e014ea96bb735", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-41006", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T17:00:58.734577Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:34:18.546Z"}}]}}

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)\n nr_destroy_socket()\n\nTo fix the memory leak, let's call sock_hold() only for a listening socket.\n\nFound by InfoTeCS on behalf of Linux Verification Center\n(linuxtesting.org) with Syzkaller.\n\n[0]: https://syzkaller.appspot.com/bug?extid=d327a1f3b12e1e206c16"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netrom/nr_timer.c"], "versions": [{"version": "a31caf5779ac", "lessThan": "d616876256b3", "status": "affected", "versionType": "git"}, {"version": "fe9b9e621ceb", "lessThan": "e07a9c2a850c", "status": "affected", "versionType": "git"}, {"version": "7de16d75b20a", "lessThan": "5391f9db2cab", "status": "affected", "versionType": "git"}, {"version": "d2d3ab1b1de3", "lessThan": "280cf1173726", "status": "affected", "versionType": "git"}, {"version": "51e394c6f81a", "lessThan": "a02fd5d775cf", "status": "affected", "versionType": "git"}, {"version": "409db27e3a2e", "lessThan": "b6ebe4fed73e", "status": "affected", "versionType": "git"}, {"version": "409db27e3a2e", "lessThan": "d377f5a28332", "status": "affected", "versionType": "git"}, {"version": "409db27e3a2e", "lessThan": "0b9130247f3b", "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/netrom/nr_timer.c"], "versions": [{"version": "6.2", "status": "affected"}, {"version": "0", "lessThan": "6.2", "status": "unaffected", "versionType": "custom"}, {"version": "4.19.317", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.4.279", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.10.221", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.15.162", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.1.96", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.6.36", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.9.7", "lessThanOrEqual": "6.9.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.10", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/d616876256b38ecf9a1a1c7d674192c5346bc69c"}, {"url": "https://git.kernel.org/stable/c/e07a9c2a850cdebf625e7a1b8171bd23a8554313"}, {"url": "https://git.kernel.org/stable/c/5391f9db2cab5ef1cb411be1ab7dbec728078fba"}, {"url": "https://git.kernel.org/stable/c/280cf1173726a7059b628c610c71050d5c0b6937"}, {"url": "https://git.kernel.org/stable/c/a02fd5d775cf9787ee7698c797e20f2fa13d2e2b"}, {"url": "https://git.kernel.org/stable/c/b6ebe4fed73eedeb73f4540f8edc4871945474c8"}, {"url": "https://git.kernel.org/stable/c/d377f5a28332954b19e373d36823e59830ab1712"}, {"url": "https://git.kernel.org/stable/c/0b9130247f3b6a1122478471ff0e014ea96bb735"}], "title": "netrom: Fix a memory leak in nr_heartbeat_expiry()", "x_generator": {"engine": "bippy-c9c4e1df01b2"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-41006", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T17:00:58.734577Z"}}}], "providerMetadata": {"shortName": "CISA-ADP", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "dateUpdated": "2024-09-11T12:42:21.915Z"}, "title": "CISA ADP Vulnrichment"}]}}

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El commit 409db27e3a2e (\"netrom: Reparar el use-after-free de un socket de escucha\") agreg\u00f3 sock_hold() a la funci\u00f3n nr_heartbeat_expiry(), donde a) un socket tiene un indicador SOCK_DESTROY ob) un socket de escucha tiene un indicador SOCK_DEAD. Pero en el caso \"a\", cuando se establece el indicador SOCK_DESTROY, el descriptor de archivo ya se ha cerrado y se ha llamado a la funci\u00f3n nr_release(). Por lo tanto, no tiene sentido mantener el recuento de referencias porque nadie llamar\u00e1 a otro nr_destroy_socket() y lo pondr\u00e1 como en el caso \"b\". nr_connect nr_establecer_data_link nr_start_heartbeat nr_release interruptor (nr->estado) caso NR_STATE_3 nr->estado = NR_STATE_2 sock_set_flag(sk, SOCK_DESTROY); nr_rx_frame nr_process_rx_frame interruptor (nr->estado) caso NR_STATE_2 nr_state2_machine() nr_disconnect() nr_sk(sk)->estado = NR_STATE_0 sock_set_flag(sk, SOCK_DEAD) nr_heartbeat_expiry interruptor (nr->estado) caso NR_STATE_0 if (sock_flag(sk, OCK_DESTROY) || (sk->sk_state == TCP_LISTEN && sock_flag(sk, SOCK_DEAD))) sock_hold() // ( !!! ) nr_destroy_socket() Para solucionar la p\u00e9rdida de memoria, llamemos a sock_hold() solo para un socket de escucha. Encontrado por InfoTeCS en nombre del Centro de verificaci\u00f3n de Linux (linuxtesting.org) con Syzkaller. [0]: https://syzkaller.appspot.com/bug?extid=d327a1f3b12e1e206c16"}], "id": "CVE-2024-41006", "lastModified": "2024-08-21T17:20:57.467", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-07-12T13:15:21.370", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/0b9130247f3b6a1122478471ff0e014ea96bb735"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/280cf1173726a7059b628c610c71050d5c0b6937"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/5391f9db2cab5ef1cb411be1ab7dbec728078fba"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/a02fd5d775cf9787ee7698c797e20f2fa13d2e2b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/b6ebe4fed73eedeb73f4540f8edc4871945474c8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/d377f5a28332954b19e373d36823e59830ab1712"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/d616876256b38ecf9a1a1c7d674192c5346bc69c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/e07a9c2a850cdebf625e7a1b8171bd23a8554313"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: netrom: Fix a memory leak in nr_heartbeat_expiry()", "id": "2297590", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2297590"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-404", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnetrom: Fix a memory leak in nr_heartbeat_expiry()\nsyzbot reported a memory leak in nr_create() [0].\nCommit 409db27e3a2e (\"netrom: Fix use-after-free of a listening socket.\")\nadded sock_hold() to the nr_heartbeat_expiry() function, where\na) a socket has a SOCK_DESTROY flag or\nb) a listening socket has a SOCK_DEAD flag.\nBut in the case \"a,\" when the SOCK_DESTROY flag is set, the file descriptor\nhas already been closed and the nr_release() function has been called.\nSo it makes no sense to hold the reference count because no one will\ncall another nr_destroy_socket() and put it as in the case \"b.\"\nnr_connect\nnr_establish_data_link\nnr_start_heartbeat\nnr_release\nswitch (nr->state)\ncase NR_STATE_3\nnr->state = NR_STATE_2\nsock_set_flag(sk, SOCK_DESTROY);\nnr_rx_frame\nnr_process_rx_frame\nswitch (nr->state)\ncase NR_STATE_2\nnr_state2_machine()\nnr_disconnect()\nnr_sk(sk)->state = NR_STATE_0\nsock_set_flag(sk, SOCK_DEAD)\nnr_heartbeat_expiry\nswitch (nr->state)\ncase NR_STATE_0\nif (sock_flag(sk, SOCK_DESTROY) ||\n(sk->sk_state == TCP_LISTEN\n&& sock_flag(sk, SOCK_DEAD)))\nsock_hold() // ( !!! )\nnr_destroy_socket()\nTo fix the memory leak, let's call sock_hold() only for a listening socket.\nFound by InfoTeCS on behalf of Linux Verification Center\n(linuxtesting.org) with Syzkaller.\n[0]: https://syzkaller.appspot.com/bug?extid=d327a1f3b12e1e206c16"], "name": "CVE-2024-41006", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "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": "2024-07-12T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-41006\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-41006\nhttps://lore.kernel.org/linux-cve-announce/2024071244-CVE-2024-41006-d24b@gregkh/T"], "threat_severity": "Low", "upstream_fix": "kernel 4.19.317, kernel 5.4.279, kernel 5.10.221, kernel 5.15.162, kernel 6.1.96, kernel 6.6.36, kernel 6.9.7, kernel 6.10-rc5"}