{"id":"CVE-2022-50001","state":"PUBLISHED","title":"netfilter: nft_tproxy: restrict to prerouting hook","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_tproxy: restrict to prerouting hook\n\nTPROXY is only allowed from prerouting, but nft_tproxy doesn't check this.\nThis fixes a crash (null dereference) when using tproxy from e.g. output.","publishedAt":"2025-06-18T11:01:01.184Z","updatedAt":"2026-05-11T19:10:48.410Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4ed8eb6570a49931c705512060acd50058d61616","status":"affected","lessThan":"0b21edf4cc13516716848e0a4fdf726aa2a62cd9","versionType":"git"},{"version":"4ed8eb6570a49931c705512060acd50058d61616","status":"affected","lessThan":"83ef55c4281f1b4c6bd4457c2e96ccd1c9e80200","versionType":"git"},{"version":"4ed8eb6570a49931c705512060acd50058d61616","status":"affected","lessThan":"eaba3f9b672c3a3f820da8ee9584b9520674eafa","versionType":"git"},{"version":"4ed8eb6570a49931c705512060acd50058d61616","status":"affected","lessThan":"9a1d92cbeac3335fee99fa865b8c5b0f2e71a8f7","versionType":"git"},{"version":"4ed8eb6570a49931c705512060acd50058d61616","status":"affected","lessThan":"343fed6b0daeb528ae5c9d4d84d9ff763ac95619","versionType":"git"},{"version":"4ed8eb6570a49931c705512060acd50058d61616","status":"affected","lessThan":"18bbc3213383a82b05383827f4b1b882e3f0a5a5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/netfilter/nft_tproxy.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.19","versionType":"semver"},{"version":"4.19.273","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.232","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.169","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.95","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.19.6","status":"unaffected","lessThanOrEqual":"5.19.*","versionType":"semver"},{"version":"6.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/netfilter/nft_tproxy.c"]}],"references":["https://git.kernel.org/stable/c/0b21edf4cc13516716848e0a4fdf726aa2a62cd9","https://git.kernel.org/stable/c/83ef55c4281f1b4c6bd4457c2e96ccd1c9e80200","https://git.kernel.org/stable/c/eaba3f9b672c3a3f820da8ee9584b9520674eafa","https://git.kernel.org/stable/c/9a1d92cbeac3335fee99fa865b8c5b0f2e71a8f7","https://git.kernel.org/stable/c/343fed6b0daeb528ae5c9d4d84d9ff763ac95619","https://git.kernel.org/stable/c/18bbc3213383a82b05383827f4b1b882e3f0a5a5"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/50xxx/CVE-2022-50001.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50001","state":"PUBLISHED","datePublished":"2025-06-18T11:01:01.184Z","dateUpdated":"2026-05-11T19:10:48.410Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-06-18T10:57:27.387Z"},"containers":{"cna":{"title":"netfilter: nft_tproxy: restrict to prerouting hook","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_tproxy: restrict to prerouting hook\n\nTPROXY is only allowed from prerouting, but nft_tproxy doesn't check this.\nThis fixes a crash (null dereference) when using tproxy from e.g. output."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4ed8eb6570a49931c705512060acd50058d61616","status":"affected","lessThan":"0b21edf4cc13516716848e0a4fdf726aa2a62cd9","versionType":"git"},{"version":"4ed8eb6570a49931c705512060acd50058d61616","status":"affected","lessThan":"83ef55c4281f1b4c6bd4457c2e96ccd1c9e80200","versionType":"git"},{"version":"4ed8eb6570a49931c705512060acd50058d61616","status":"affected","lessThan":"eaba3f9b672c3a3f820da8ee9584b9520674eafa","versionType":"git"},{"version":"4ed8eb6570a49931c705512060acd50058d61616","status":"affected","lessThan":"9a1d92cbeac3335fee99fa865b8c5b0f2e71a8f7","versionType":"git"},{"version":"4ed8eb6570a49931c705512060acd50058d61616","status":"affected","lessThan":"343fed6b0daeb528ae5c9d4d84d9ff763ac95619","versionType":"git"},{"version":"4ed8eb6570a49931c705512060acd50058d61616","status":"affected","lessThan":"18bbc3213383a82b05383827f4b1b882e3f0a5a5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/netfilter/nft_tproxy.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.19","versionType":"semver"},{"version":"4.19.273","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.232","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.169","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.95","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.19.6","status":"unaffected","lessThanOrEqual":"5.19.*","versionType":"semver"},{"version":"6.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/netfilter/nft_tproxy.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/0b21edf4cc13516716848e0a4fdf726aa2a62cd9"},{"url":"https://git.kernel.org/stable/c/83ef55c4281f1b4c6bd4457c2e96ccd1c9e80200"},{"url":"https://git.kernel.org/stable/c/eaba3f9b672c3a3f820da8ee9584b9520674eafa"},{"url":"https://git.kernel.org/stable/c/9a1d92cbeac3335fee99fa865b8c5b0f2e71a8f7"},{"url":"https://git.kernel.org/stable/c/343fed6b0daeb528ae5c9d4d84d9ff763ac95619"},{"url":"https://git.kernel.org/stable/c/18bbc3213383a82b05383827f4b1b882e3f0a5a5"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:10:48.410Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"4.19.273"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"5.4.232"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"5.10.169"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"5.15.95"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"5.19.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}