{"affected":[{"affectedData":[{"product":"Linux kernel","vendor":"n/a","versions":[{"status":"affected","version":"unknown"}]}],"source":"secalert@redhat.com"},{"affectedData":[{"defaultStatus":"unknown","product":"SIMATIC S7-1500 TM MFP - GNU/Linux subsystem","vendor":"Siemens","versions":[{"lessThan":"V1.1","status":"affected","version":"0","versionType":"custom"}]}],"source":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*","matchCriteriaId":"703AF700-7A70-47E2-BC3A-7FD03B3CA9C1","vulnerable":true}],"negate":false,"operator":"OR"}]},{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*","matchCriteriaId":"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73","vulnerable":true},{"criteria":"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*","matchCriteriaId":"FA6FEEC2-9F11-4643-8827-749718254FED","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"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."},{"lang":"es","value":"Se ha encontrado un problema en el kernel de Linux en la función nf_conntrack_irc en el que el manejo de los mensajes puede confundirse y hacerlos coincidir incorrectamente. Se ha encontrado un problema en el kernel de Linux en nf_conntrack_irc donde el manejo de mensajes puede confundirse y coincidir incorrectamente con el mensaje"}],"id":"CVE-2022-2663","lastModified":"2026-10-14T14:17:22.007","metrics":{"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"exploitabilityScore":3.9,"impactScore":1.4,"source":"nvd@nist.gov","type":"Primary"}]},"published":"2022-09-01T21:15:09.653","references":[{"source":"secalert@redhat.com","tags":["Exploit","Third Party Advisory"],"url":"https://dgl.cx/2022/08/nat-again-irc-cve-2022-2663"},{"source":"secalert@redhat.com","tags":["Mailing List","Third Party Advisory"],"url":"https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html"},{"source":"secalert@redhat.com","tags":["Mailing List","Third Party Advisory"],"url":"https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html"},{"source":"secalert@redhat.com","url":"https://lore.kernel.org/netfilter-devel/20220826045658.100360-1-dgl%40dgl.cx/T/"},{"source":"secalert@redhat.com","tags":["Third Party Advisory"],"url":"https://www.debian.org/security/2022/dsa-5257"},{"source":"secalert@redhat.com","tags":["Mailing List","Third Party Advisory"],"url":"https://www.openwall.com/lists/oss-security/2022/08/30/1"},{"source":"secalert@redhat.com","tags":["Exploit","Third Party Advisory"],"url":"https://www.youtube.com/watch?v=WIq-YgQuYCA"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory"],"url":"https://dgl.cx/2022/08/nat-again-irc-cve-2022-2663"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"],"url":"https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"],"url":"https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html"},{"source":"af854a3a-2127-422b-91ae-364da2661108","url":"https://lore.kernel.org/netfilter-devel/20220826045658.100360-1-dgl%40dgl.cx/T/"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"url":"https://www.debian.org/security/2022/dsa-5257"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"],"url":"https://www.openwall.com/lists/oss-security/2022/08/30/1"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory"],"url":"https://www.youtube.com/watch?v=WIq-YgQuYCA"},{"source":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e","url":"https://cert-portal.siemens.com/productcert/html/ssa-769027.html"},{"source":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e","url":"https://cert-portal.siemens.com/productcert/html/ssa-794697.html"}],"sourceIdentifier":"secalert@redhat.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-923"}],"source":"secalert@redhat.com","type":"Secondary"},{"description":[{"lang":"en","value":"NVD-CWE-Other"}],"source":"nvd@nist.gov","type":"Secondary"}]}