{ "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": "2024-10-22T13:28:44.637Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-10-21T19:39:38.451Z" }, "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": "custom" }, { "version": "5.15.168", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.1.113", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.6.57", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.11.4", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "custom" }, { "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-c9c4e1df01b2" } }, "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" } } ] } }