{"id":"CVE-2024-43873","state":"PUBLISHED","title":"vhost/vsock: always initialize seqpacket_allow","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvhost/vsock: always initialize seqpacket_allow\n\nThere are two issues around seqpacket_allow:\n1. seqpacket_allow is not initialized when socket is\n   created. Thus if features are never set, it will be\n   read uninitialized.\n2. if VIRTIO_VSOCK_F_SEQPACKET is set and then cleared,\n   then seqpacket_allow will not be cleared appropriately\n   (existing apps I know about don't usually do this but\n    it's legal and there's no way to be sure no one relies\n    on this).\n\nTo fix:\n\t- initialize seqpacket_allow after allocation\n\t- set it unconditionally in set_features","publishedAt":"2024-08-21T00:06:25.114Z","updatedAt":"2026-05-11T20:31:28.675Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ced7b713711fdd8f99d8d04dc53451441d194c60","status":"affected","lessThan":"ea558f10fb05a6503c6e655a1b7d81fdf8e5924c","versionType":"git"},{"version":"ced7b713711fdd8f99d8d04dc53451441d194c60","status":"affected","lessThan":"3062cb100787a9ddf45de30004b962035cd497fb","versionType":"git"},{"version":"ced7b713711fdd8f99d8d04dc53451441d194c60","status":"affected","lessThan":"30bd4593669443ac58515e23557dc8cef70d8582","versionType":"git"},{"version":"ced7b713711fdd8f99d8d04dc53451441d194c60","status":"affected","lessThan":"eab96e8716cbfc2834b54f71cc9501ad4eec963b","versionType":"git"},{"version":"ced7b713711fdd8f99d8d04dc53451441d194c60","status":"affected","lessThan":"1e1fdcbdde3b7663e5d8faeb2245b9b151417d22","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/vhost/vsock.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.14","versionType":"semver"},{"version":"5.15.165","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.103","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.44","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.10.3","status":"unaffected","lessThanOrEqual":"6.10.*","versionType":"semver"},{"version":"6.11","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/vhost/vsock.c"]}],"references":["https://git.kernel.org/stable/c/ea558f10fb05a6503c6e655a1b7d81fdf8e5924c","https://git.kernel.org/stable/c/3062cb100787a9ddf45de30004b962035cd497fb","https://git.kernel.org/stable/c/30bd4593669443ac58515e23557dc8cef70d8582","https://git.kernel.org/stable/c/eab96e8716cbfc2834b54f71cc9501ad4eec963b","https://git.kernel.org/stable/c/1e1fdcbdde3b7663e5d8faeb2245b9b151417d22","https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:07:47.831Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/43xxx/CVE-2024-43873.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-43873","state":"PUBLISHED","datePublished":"2024-08-21T00:06:25.114Z","dateUpdated":"2026-05-11T20:31:28.675Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-08-17T09:11:59.281Z"},"containers":{"cna":{"title":"vhost/vsock: always initialize seqpacket_allow","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nvhost/vsock: always initialize seqpacket_allow\n\nThere are two issues around seqpacket_allow:\n1. seqpacket_allow is not initialized when socket is\n   created. Thus if features are never set, it will be\n   read uninitialized.\n2. if VIRTIO_VSOCK_F_SEQPACKET is set and then cleared,\n   then seqpacket_allow will not be cleared appropriately\n   (existing apps I know about don't usually do this but\n    it's legal and there's no way to be sure no one relies\n    on this).\n\nTo fix:\n\t- initialize seqpacket_allow after allocation\n\t- set it unconditionally in set_features"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ced7b713711fdd8f99d8d04dc53451441d194c60","status":"affected","lessThan":"ea558f10fb05a6503c6e655a1b7d81fdf8e5924c","versionType":"git"},{"version":"ced7b713711fdd8f99d8d04dc53451441d194c60","status":"affected","lessThan":"3062cb100787a9ddf45de30004b962035cd497fb","versionType":"git"},{"version":"ced7b713711fdd8f99d8d04dc53451441d194c60","status":"affected","lessThan":"30bd4593669443ac58515e23557dc8cef70d8582","versionType":"git"},{"version":"ced7b713711fdd8f99d8d04dc53451441d194c60","status":"affected","lessThan":"eab96e8716cbfc2834b54f71cc9501ad4eec963b","versionType":"git"},{"version":"ced7b713711fdd8f99d8d04dc53451441d194c60","status":"affected","lessThan":"1e1fdcbdde3b7663e5d8faeb2245b9b151417d22","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/vhost/vsock.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.14","versionType":"semver"},{"version":"5.15.165","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.103","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.44","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.10.3","status":"unaffected","lessThanOrEqual":"6.10.*","versionType":"semver"},{"version":"6.11","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/vhost/vsock.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/ea558f10fb05a6503c6e655a1b7d81fdf8e5924c"},{"url":"https://git.kernel.org/stable/c/3062cb100787a9ddf45de30004b962035cd497fb"},{"url":"https://git.kernel.org/stable/c/30bd4593669443ac58515e23557dc8cef70d8582"},{"url":"https://git.kernel.org/stable/c/eab96e8716cbfc2834b54f71cc9501ad4eec963b"},{"url":"https://git.kernel.org/stable/c/1e1fdcbdde3b7663e5d8faeb2245b9b151417d22"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T20:31:28.675Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"5.15.165"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.1.103"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.6.44"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.10.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.11"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2024-43873","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-09-10T16:06:13.431243Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-09-12T17:33:18.350Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T22:06:23.270Z"}}]}}}