{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-50038", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-10-21T12:17:06.070Z", "datePublished": "2024-10-21T19:39:38.451Z", "dateUpdated": "2024-11-05T09:53:57.437Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-05T09:53:57.437Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: xtables: avoid NFPROTO_UNSPEC where needed\n\nsyzbot managed to call xt_cluster match via ebtables:\n\n WARNING: CPU: 0 PID: 11 at net/netfilter/xt_cluster.c:72 xt_cluster_mt+0x196/0x780\n [..]\n ebt_do_table+0x174b/0x2a40\n\nModule registers to NFPROTO_UNSPEC, but it assumes ipv4/ipv6 packet\nprocessing. As this is only useful to restrict locally terminating\nTCP/UDP traffic, register this for ipv4 and ipv6 family only.\n\nPablo points out that this is a general issue, direct users of the\nset/getsockopt interface can call into targets/matches that were only\nintended for use with ip(6)tables.\n\nCheck all UNSPEC matches and targets for similar issues:\n\n- matches and targets are fine except if they assume skb_network_header()\n is valid -- this is only true when called from inet layer: ip(6) stack\n pulls the ip/ipv6 header into linear data area.\n- targets that return XT_CONTINUE or other xtables verdicts must be\n restricted too, they are incompatbile with the ebtables traverser, e.g.\n EBT_CONTINUE is a completely different value than XT_CONTINUE.\n\nMost matches/targets are changed to register for NFPROTO_IPV4/IPV6, as\nthey are provided for use by ip(6)tables.\n\nThe MARK target is also used by arptables, so register for NFPROTO_ARP too.\n\nWhile at it, bail out if connbytes fails to enable the corresponding\nconntrack family.\n\nThis change passes the selftests in iptables.git."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/xt_CHECKSUM.c", "net/netfilter/xt_CLASSIFY.c", "net/netfilter/xt_CONNSECMARK.c", "net/netfilter/xt_CT.c", "net/netfilter/xt_IDLETIMER.c", "net/netfilter/xt_LED.c", "net/netfilter/xt_NFLOG.c", "net/netfilter/xt_RATEEST.c", "net/netfilter/xt_SECMARK.c", "net/netfilter/xt_TRACE.c", "net/netfilter/xt_addrtype.c", "net/netfilter/xt_cluster.c", "net/netfilter/xt_connbytes.c", "net/netfilter/xt_connlimit.c", "net/netfilter/xt_connmark.c", "net/netfilter/xt_mark.c"], "versions": [{"version": "0269ea493734", "lessThan": "85ff9a0f793c", "status": "affected", "versionType": "git"}, {"version": "0269ea493734", "lessThan": "8f482bb7e27b", "status": "affected", "versionType": "git"}, {"version": "0269ea493734", "lessThan": "997f67d813ce", "status": "affected", "versionType": "git"}, {"version": "0269ea493734", "lessThan": "4cdc55ec6222", "status": "affected", "versionType": "git"}, {"version": "0269ea493734", "lessThan": "0bfcb7b71e73", "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/netfilter/xt_CHECKSUM.c", "net/netfilter/xt_CLASSIFY.c", "net/netfilter/xt_CONNSECMARK.c", "net/netfilter/xt_CT.c", "net/netfilter/xt_IDLETIMER.c", "net/netfilter/xt_LED.c", "net/netfilter/xt_NFLOG.c", "net/netfilter/xt_RATEEST.c", "net/netfilter/xt_SECMARK.c", "net/netfilter/xt_TRACE.c", "net/netfilter/xt_addrtype.c", "net/netfilter/xt_cluster.c", "net/netfilter/xt_connbytes.c", "net/netfilter/xt_connlimit.c", "net/netfilter/xt_connmark.c", "net/netfilter/xt_mark.c"], "versions": [{"version": "2.6.30", "status": "affected"}, {"version": "0", "lessThan": "2.6.30", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.168", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.113", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.57", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11.4", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12-rc3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/85ff9a0f793ca52c527e75cd40a69c948627ebde"}, {"url": "https://git.kernel.org/stable/c/8f482bb7e27b37f1f734bb9a8eeb28b23d59d189"}, {"url": "https://git.kernel.org/stable/c/997f67d813ce0cf5eb3cdb8f124da68141e91b6c"}, {"url": "https://git.kernel.org/stable/c/4cdc55ec6222bb195995cc58f7cb46e4d8907056"}, {"url": "https://git.kernel.org/stable/c/0bfcb7b71e735560077a42847f69597ec7dcc326"}], "title": "netfilter: xtables: avoid NFPROTO_UNSPEC where needed", "x_generator": {"engine": "bippy-9e1c9544281a"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-50038", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-10-22T13:25:10.359959Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-22T13:28:44.637Z"}}]}}

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As this is only useful to restrict locally terminating\nTCP/UDP traffic, register this for ipv4 and ipv6 family only.\n\nPablo points out that this is a general issue, direct users of the\nset/getsockopt interface can call into targets/matches that were only\nintended for use with ip(6)tables.\n\nCheck all UNSPEC matches and targets for similar issues:\n\n- matches and targets are fine except if they assume skb_network_header()\n is valid -- this is only true when called from inet layer: ip(6) stack\n pulls the ip/ipv6 header into linear data area.\n- targets that return XT_CONTINUE or other xtables verdicts must be\n restricted too, they are incompatbile with the ebtables traverser, e.g.\n EBT_CONTINUE is a completely different value than XT_CONTINUE.\n\nMost matches/targets are changed to register for NFPROTO_IPV4/IPV6, as\nthey are provided for use by ip(6)tables.\n\nThe MARK target is also used by arptables, so register for NFPROTO_ARP too.\n\nWhile at it, bail out if connbytes fails to enable the corresponding\nconntrack family.\n\nThis change passes the selftests in iptables.git."}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-05T09:53:57.437Z"}}}, "cveMetadata": {"cveId": "CVE-2024-50038", "state": "PUBLISHED", "dateUpdated": "2024-11-05T09:53:57.437Z", "dateReserved": "2024-10-21T12:17:06.070Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-10-21T19:39:38.451Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B7B7108B-7220-433F-A168-6ECF9D7F65F3", "versionEndExcluding": "5.15.168", "versionStartIncluding": "2.6.30", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D01BD22E-ACD1-4618-9D01-6116570BE1EE", "versionEndExcluding": "6.1.113", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "05D83DB8-7465-4F88-AFB2-980011992AC1", "versionEndExcluding": "6.6.57", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "AA84D336-CE9A-4535-B901-1AD77EC17C34", "versionEndExcluding": "6.11.4", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*", "matchCriteriaId": "7F361E1D-580F-4A2D-A509-7615F73167A1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*", "matchCriteriaId": "925478D0-3E3D-4E6F-ACD5-09F28D5DF82C", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: xtables: avoid NFPROTO_UNSPEC where needed\n\nsyzbot managed to call xt_cluster match via ebtables:\n\n WARNING: CPU: 0 PID: 11 at net/netfilter/xt_cluster.c:72 xt_cluster_mt+0x196/0x780\n [..]\n ebt_do_table+0x174b/0x2a40\n\nModule registers to NFPROTO_UNSPEC, but it assumes ipv4/ipv6 packet\nprocessing. As this is only useful to restrict locally terminating\nTCP/UDP traffic, register this for ipv4 and ipv6 family only.\n\nPablo points out that this is a general issue, direct users of the\nset/getsockopt interface can call into targets/matches that were only\nintended for use with ip(6)tables.\n\nCheck all UNSPEC matches and targets for similar issues:\n\n- matches and targets are fine except if they assume skb_network_header()\n is valid -- this is only true when called from inet layer: ip(6) stack\n pulls the ip/ipv6 header into linear data area.\n- targets that return XT_CONTINUE or other xtables verdicts must be\n restricted too, they are incompatbile with the ebtables traverser, e.g.\n EBT_CONTINUE is a completely different value than XT_CONTINUE.\n\nMost matches/targets are changed to register for NFPROTO_IPV4/IPV6, as\nthey are provided for use by ip(6)tables.\n\nThe MARK target is also used by arptables, so register for NFPROTO_ARP too.\n\nWhile at it, bail out if connbytes fails to enable the corresponding\nconntrack family.\n\nThis change passes the selftests in iptables.git."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: xtables: evita NFPROTO_UNSPEC donde sea necesario syzbot logr\u00f3 llamar a xt_cluster match a trav\u00e9s de ebtables: ADVERTENCIA: CPU: 0 PID: 11 en net/netfilter/xt_cluster.c:72 xt_cluster_mt+0x196/0x780 [..] ebt_do_table+0x174b/0x2a40 El m\u00f3dulo se registra en NFPROTO_UNSPEC, pero asume el procesamiento de paquetes ipv4/ipv6. Como esto solo es \u00fatil para restringir el tr\u00e1fico TCP/UDP que termina localmente, reg\u00edstrelo solo para la familia ipv4 e ipv6. Pablo se\u00f1ala que este es un problema general, los usuarios directos de la interfaz set/getsockopt pueden llamar a destinos/coincidencias que solo estaban destinados a usarse con tablas ip(6). Compruebe todas las coincidencias y objetivos UNSPEC para ver si hay problemas similares: - las coincidencias y los objetivos est\u00e1n bien excepto si asumen que skb_network_header() es v\u00e1lido - esto solo es cierto cuando se llama desde la capa inet: la pila ip(6) extrae el encabezado ip/ipv6 en el \u00e1rea de datos lineales. - los objetivos que devuelven XT_CONTINUE u otros veredictos de xtables tambi\u00e9n deben restringirse, son incompatibles con el traverser de ebtables, por ejemplo, EBT_CONTINUE es un valor completamente diferente de XT_CONTINUE. La mayor\u00eda de las coincidencias/objetivos se cambian para registrarse para NFPROTO_IPV4/IPV6, ya que se proporcionan para su uso por ip(6)tables. El objetivo MARK tambi\u00e9n lo usan arptables, as\u00ed que reg\u00edstrese tambi\u00e9n para NFPROTO_ARP. Mientras tanto, abandone si connbytes no puede habilitar la familia conntrack correspondiente. Este cambio pasa las autopruebas en iptables.git."}], "id": "CVE-2024-50038", "lastModified": "2024-10-25T15:45:51.340", "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": "2024-10-21T20:15:16.877", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0bfcb7b71e735560077a42847f69597ec7dcc326"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4cdc55ec6222bb195995cc58f7cb46e4d8907056"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/85ff9a0f793ca52c527e75cd40a69c948627ebde"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8f482bb7e27b37f1f734bb9a8eeb28b23d59d189"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/997f67d813ce0cf5eb3cdb8f124da68141e91b6c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: netfilter: xtables: avoid NFPROTO_UNSPEC where needed", "id": "2320587", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2320587"}, "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: xtables: avoid NFPROTO_UNSPEC where needed\nsyzbot managed to call xt_cluster match via ebtables:\nWARNING: CPU: 0 PID: 11 at net/netfilter/xt_cluster.c:72 xt_cluster_mt+0x196/0x780\n[..]\nebt_do_table+0x174b/0x2a40\nModule registers to NFPROTO_UNSPEC, but it assumes ipv4/ipv6 packet\nprocessing. As this is only useful to restrict locally terminating\nTCP/UDP traffic, register this for ipv4 and ipv6 family only.\nPablo points out that this is a general issue, direct users of the\nset/getsockopt interface can call into targets/matches that were only\nintended for use with ip(6)tables.\nCheck all UNSPEC matches and targets for similar issues:\n- matches and targets are fine except if they assume skb_network_header()\nis valid -- this is only true when called from inet layer: ip(6) stack\npulls the ip/ipv6 header into linear data area.\n- targets that return XT_CONTINUE or other xtables verdicts must be\nrestricted too, they are incompatbile with the ebtables traverser, e.g.\nEBT_CONTINUE is a completely different value than XT_CONTINUE.\nMost matches/targets are changed to register for NFPROTO_IPV4/IPV6, as\nthey are provided for use by ip(6)tables.\nThe MARK target is also used by arptables, so register for NFPROTO_ARP too.\nWhile at it, bail out if connbytes fails to enable the corresponding\nconntrack family.\nThis change passes the selftests in iptables.git."], "name": "CVE-2024-50038", "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": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-10-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-50038\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-50038\nhttps://lore.kernel.org/linux-cve-announce/2024102132-CVE-2024-50038-dc41@gregkh/T"], "threat_severity": "Moderate"}