Show plain JSON{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2021-46913", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-25T13:45:52.718Z", "datePublished": "2024-02-27T06:53:52.780Z", "dateUpdated": "2025-05-04T07:00:14.073Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T07:00:14.073Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nftables: clone set element expression template\n\nmemcpy() breaks when using connlimit in set elements. Use\nnft_expr_clone() to initialize the connlimit expression list, otherwise\nconnlimit garbage collector crashes when walking on the list head copy.\n\n[ 493.064656] Workqueue: events_power_efficient nft_rhash_gc [nf_tables]\n[ 493.064685] RIP: 0010:find_or_evict+0x5a/0x90 [nf_conncount]\n[ 493.064694] Code: 2b 43 40 83 f8 01 77 0d 48 c7 c0 f5 ff ff ff 44 39 63 3c 75 df 83 6d 18 01 48 8b 43 08 48 89 de 48 8b 13 48 8b 3d ee 2f 00 00 <48> 89 42 08 48 89 10 48 b8 00 01 00 00 00 00 ad de 48 89 03 48 83\n[ 493.064699] RSP: 0018:ffffc90000417dc0 EFLAGS: 00010297\n[ 493.064704] RAX: 0000000000000000 RBX: ffff888134f38410 RCX: 0000000000000000\n[ 493.064708] RDX: 0000000000000000 RSI: ffff888134f38410 RDI: ffff888100060cc0\n[ 493.064711] RBP: ffff88812ce594a8 R08: ffff888134f38438 R09: 00000000ebb9025c\n[ 493.064714] R10: ffffffff8219f838 R11: 0000000000000017 R12: 0000000000000001\n[ 493.064718] R13: ffffffff82146740 R14: ffff888134f38410 R15: 0000000000000000\n[ 493.064721] FS: 0000000000000000(0000) GS:ffff88840e440000(0000) knlGS:0000000000000000\n[ 493.064725] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 493.064729] CR2: 0000000000000008 CR3: 00000001330aa002 CR4: 00000000001706e0\n[ 493.064733] Call Trace:\n[ 493.064737] nf_conncount_gc_list+0x8f/0x150 [nf_conncount]\n[ 493.064746] nft_rhash_gc+0x106/0x390 [nf_tables]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/nf_tables_api.c"], "versions": [{"version": "4094445229760d0d31a4190dfe88fe815c9fc34e", "lessThan": "e51ff3ffc316377cca21de8b80404eed0c37b3c3", "status": "affected", "versionType": "git"}, {"version": "4094445229760d0d31a4190dfe88fe815c9fc34e", "lessThan": "47d8de3c226574a3ddb8b87d0c152028d1bafef4", "status": "affected", "versionType": "git"}, {"version": "4094445229760d0d31a4190dfe88fe815c9fc34e", "lessThan": "4d8f9065830e526c83199186c5f56a6514f457d2", "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/nf_tables_api.c"], "versions": [{"version": "5.7", "status": "affected"}, {"version": "0", "lessThan": "5.7", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.64", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.11.16", "lessThanOrEqual": "5.11.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.12", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "5.10.64"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "5.11.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "5.12"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/e51ff3ffc316377cca21de8b80404eed0c37b3c3"}, {"url": "https://git.kernel.org/stable/c/47d8de3c226574a3ddb8b87d0c152028d1bafef4"}, {"url": "https://git.kernel.org/stable/c/4d8f9065830e526c83199186c5f56a6514f457d2"}], "title": "netfilter: nftables: clone set element expression template", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-07-25T16:05:03.441249Z", "id": "CVE-2021-46913", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-07-25T16:05:13.419Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:17:42.990Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/e51ff3ffc316377cca21de8b80404eed0c37b3c3", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/47d8de3c226574a3ddb8b87d0c152028d1bafef4", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/4d8f9065830e526c83199186c5f56a6514f457d2", "tags": ["x_transferred"]}]}]}}