{"id":"CVE-2022-2663","state":"PUBLISHED","title":"An issue was found in the Linux kernel in nf_conntrack_irc where the message handling can be confused and incorrectly matches the message. A firewall may be able to be bypassed whe","description":"An issue was found in the Linux kernel in nf_conntrack_irc where the message handling can be confused and incorrectly matches the message. A firewall may be able to be bypassed when users are using unencrypted IRC with nf_conntrack_irc configured.","publishedAt":"2022-09-01T00:00:00.000Z","updatedAt":"2026-10-14T13:29:18.560Z","severity":null,"assigner":"redhat","products":["n/a Linux kernel"],"affected":[{"vendor":"n/a","product":"Linux kernel","versions":[{"version":"unknown","status":"affected"}]}],"references":["https://www.openwall.com/lists/oss-security/2022/08/30/1","https://lore.kernel.org/netfilter-devel/20220826045658.100360-1-dgl%40dgl.cx/T/","https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html","https://dgl.cx/2022/08/nat-again-irc-cve-2022-2663","https://www.youtube.com/watch?v=WIq-YgQuYCA","https://www.debian.org/security/2022/dsa-5257","https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html","https://cert-portal.siemens.com/productcert/html/ssa-794697.html","https://cert-portal.siemens.com/productcert/html/ssa-769027.html"],"weaknesses":["CWE-923"],"ingestedAt":"2026-10-29T19:50:01.354Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/2xxx/CVE-2022-2663.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-2663","state":"PUBLISHED","datePublished":"2022-09-01T00:00:00.000Z","dateUpdated":"2026-10-14T13:29:18.560Z","assignerShortName":"redhat","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateReserved":"2022-08-04T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"An issue was found in the Linux kernel in nf_conntrack_irc where the message handling can be confused and incorrectly matches the message. A firewall may be able to be bypassed when users are using unencrypted IRC with nf_conntrack_irc configured."}],"affected":[{"vendor":"n/a","product":"Linux kernel","versions":[{"version":"unknown","status":"affected"}]}],"references":[{"url":"https://www.openwall.com/lists/oss-security/2022/08/30/1"},{"url":"https://lore.kernel.org/netfilter-devel/20220826045658.100360-1-dgl%40dgl.cx/T/"},{"url":"https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html","name":"[debian-lts-announce] 20221002 [SECURITY] [DLA 3131-1] linux security update","tags":["mailing-list"]},{"url":"https://dgl.cx/2022/08/nat-again-irc-cve-2022-2663"},{"url":"https://www.youtube.com/watch?v=WIq-YgQuYCA"},{"url":"https://www.debian.org/security/2022/dsa-5257","name":"DSA-5257","tags":["vendor-advisory"]},{"url":"https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html","name":"[debian-lts-announce] 20221101 [SECURITY] [DLA 3173-1] linux-5.10 security update","tags":["mailing-list"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-923","type":"CWE","lang":"en","description":"CWE-923"}]}],"providerMetadata":{"shortName":"redhat","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateUpdated":"2022-11-01T00:00:00.000Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://www.openwall.com/lists/oss-security/2022/08/30/1","tags":["x_transferred"]},{"url":"https://lore.kernel.org/netfilter-devel/20220826045658.100360-1-dgl%40dgl.cx/T/","tags":["x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html","name":"[debian-lts-announce] 20221002 [SECURITY] [DLA 3131-1] linux security update","tags":["mailing-list","x_transferred"]},{"url":"https://dgl.cx/2022/08/nat-again-irc-cve-2022-2663","tags":["x_transferred"]},{"url":"https://www.youtube.com/watch?v=WIq-YgQuYCA","tags":["x_transferred"]},{"url":"https://www.debian.org/security/2022/dsa-5257","name":"DSA-5257","tags":["vendor-advisory","x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html","name":"[debian-lts-announce] 20221101 [SECURITY] [DLA 3173-1] linux-5.10 security update","tags":["mailing-list","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T00:46:04.030Z"}},{"affected":[{"vendor":"Siemens","product":"SIMATIC S7-1500 TM MFP - GNU/Linux subsystem","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThan":"V1.1","versionType":"custom"}]}],"references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-794697.html"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-769027.html"}],"providerMetadata":{"shortName":"siemens-SADP","orgId":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e","dateUpdated":"2026-10-14T13:29:18.560Z"},"x_adpType":"supplier"}]}}}