{"id":"CVE-2026-47336","state":"PUBLISHED","title":"Use of uninitialized value in Ubuntu Linux AppArmor IPv4/IPv6 socket mediation rules","description":"Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/AF_INET6 socket mediation code. The bug can be triggered by an unprivileged local user and could result in incorrect fine-grained mediation of network sockets.","publishedAt":"2026-05-28T18:29:01.992Z","updatedAt":"2026-05-28T19:23:22.236Z","severity":{"score":3.3,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","source":"canonical"},"assigner":"canonical","products":["Canonical Ubuntu Linux"],"affected":[{"vendor":"Canonical","product":"Ubuntu Linux","packageName":"linux","defaultStatus":"unaffected","versions":[{"version":"6.8.0","status":"affected","lessThan":"6.8.0-124.124","versionType":"dpkg"}],"collectionURL":"https://launchpad.net/ubuntu/+source/","repo":"https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/","modules":["AppArmor"]}],"references":["https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=f37c6a70fe7b435322c334554002809a4e7b7293"],"weaknesses":["CWE-457"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/47xxx/CVE-2026-47336.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-47336","state":"PUBLISHED","datePublished":"2026-05-28T18:29:01.992Z","dateUpdated":"2026-05-28T19:23:22.236Z","assignerShortName":"canonical","assignerOrgId":"cc1ad9ee-3454-478d-9317-d3e869d708bc","dateReserved":"2026-05-19T10:37:36.434Z"},"containers":{"cna":{"title":"Use of uninitialized value in Ubuntu Linux AppArmor IPv4/IPv6 socket mediation rules","descriptions":[{"lang":"en","value":"Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/AF_INET6 socket mediation code. The bug can be triggered by an unprivileged local user and could result in incorrect fine-grained mediation of network sockets."}],"affected":[{"vendor":"Canonical","product":"Ubuntu Linux","packageName":"linux","defaultStatus":"unaffected","versions":[{"version":"6.8.0","status":"affected","lessThan":"6.8.0-124.124","versionType":"dpkg"}],"collectionURL":"https://launchpad.net/ubuntu/+source/","repo":"https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/","modules":["AppArmor"]}],"references":[{"url":"https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=f37c6a70fe7b435322c334554002809a4e7b7293","tags":["patch"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE","baseSeverity":"LOW","baseScore":3.3,"vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-457","lang":"en","description":"CWE-457 Use of uninitialized variable","type":"CWE"}]}],"providerMetadata":{"shortName":"canonical","orgId":"cc1ad9ee-3454-478d-9317-d3e869d708bc","dateUpdated":"2026-05-28T18:29:01.992Z"},"credits":[{"lang":"en","value":"Tristan Madani (@TristanInSec), Talence Security","type":"finder"}],"source":{"discovery":"EXTERNAL"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-28T19:21:17.067482Z","id":"CVE-2026-47336","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-28T19:23:22.236Z"}}]}}}