{"id":"MGASA-2023-0131","summary":"Updated tigervnc/x11-server packages fix security vulnerability","details":"A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead\nto local privilege escalation. If a client explicitly destroys the\ncompositor overlay window (aka COW), the Xserver would leave a dangling\npointer to that window in the CompScreen structure, which will trigger a\nuse-after-free later. (CVE-2023-1393)\n","modified":"2026-04-16T04:41:18.207317890Z","published":"2023-04-11T19:02:20Z","upstream":["CVE-2023-1393"],"references":[{"type":"ADVISORY","url":"https://advisories.mageia.org/MGASA-2023-0131.html"},{"type":"REPORT","url":"https://bugs.mageia.org/show_bug.cgi?id=31732"},{"type":"WEB","url":"https://lists.x.org/archives/xorg-announce/2023-March/003374.html"},{"type":"WEB","url":"https://www.debian.org/security/2023/dsa-5380"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5986-1"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/CB62PUAZRE2ZK6PDX6OZ2WSYXDJGBGTS/"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:1592"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/SW2NRC3V53PIBXFPFBVWCOM2MDDILWQS/"}],"affected":[{"package":{"name":"tigervnc","ecosystem":"Mageia:8","purl":"pkg:rpm/mageia/tigervnc?arch=source&distro=mageia-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.11.0-4.3.mga8"}]}],"ecosystem_specific":{"section":"core"},"database_specific":{"source":"https://advisories.mageia.org/MGASA-2023-0131.json"}},{"package":{"name":"x11-server","ecosystem":"Mageia:8","purl":"pkg:rpm/mageia/x11-server?arch=source&distro=mageia-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.20.14-4.3.mga8"}]}],"ecosystem_specific":{"section":"core"},"database_specific":{"source":"https://advisories.mageia.org/MGASA-2023-0131.json"}}],"schema_version":"1.7.5","credits":[{"name":"Mageia","contact":["https://wiki.mageia.org/en/Packages_Security_Team"],"type":"COORDINATOR"}]}