{"id":"CVE-2020-14346","details":"A flaw was found in xorg-x11-server before 1.20.9. An integer underflow in the X input extension protocol decoding in the X server may lead to arbitrary access of memory contents. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.","modified":"2026-04-16T04:39:24.561885426Z","published":"2020-09-15T19:15:12.743Z","related":["ALSA-2021:1804","SUSE-SU-2020:2240-1","SUSE-SU-2020:2241-1","SUSE-SU-2020:2242-1","SUSE-SU-2020:2325-1","SUSE-SU-2020:2326-1","SUSE-SU-2020:2331-1","openSUSE-SU-2020:1279-1","openSUSE-SU-2020:1302-1","openSUSE-SU-2024:11525-1"],"references":[{"type":"ADVISORY","url":"https://www.zerodayinitiative.com/advisories/ZDI-20-1417/"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202012-01"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4488-2/"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1862246"},{"type":"FIX","url":"https://lists.x.org/archives/xorg-announce/2020-August/003058.html"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"1.20.9"}]},{"events":[{"introduced":"0"},{"last_affected":"14.04"}]},{"events":[{"introduced":"0"},{"last_affected":"6.0"}]},{"events":[{"introduced":"0"},{"last_affected":"7.0"}]},{"events":[{"introduced":"0"},{"last_affected":"8.0"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-14346.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}