{"id":"CVE-2018-14600","details":"An issue was discovered in libX11 through 1.6.5. The function XListExtensions in ListExt.c interprets a variable as signed instead of unsigned, resulting in an out-of-bounds write (of up to 128 bytes), leading to DoS or remote code execution.","modified":"2026-03-20T11:23:14.575177Z","published":"2018-08-24T19:29:01.567Z","related":["MGASA-2018-0377","SUSE-SU-2018:2934-1","SUSE-SU-2018:2955-1","SUSE-SU-2018:3102-1","openSUSE-SU-2024:10918-1"],"references":[{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/201811-01"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3758-1/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3758-2/"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/105177"},{"type":"ADVISORY","url":"http://www.securitytracker.com/id/1041543"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:2079"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2018/08/msg00030.html"},{"type":"ADVISORY","url":"https://lists.x.org/archives/xorg-announce/2018-August/002916.html"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2018/08/21/6"},{"type":"FIX","url":"https://bugzilla.suse.com/show_bug.cgi?id=1102068"},{"type":"FIX","url":"https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=dbf72805fd9d7b1846fe9a11b46f3994bfc27fea"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://gitlab.freedesktop.org/xorg/lib/libX11","events":[{"introduced":"0"},{"last_affected":"42f4d7af9cf6d1dbfa575552e057328b054a20c9"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"1.6.5"}]}}],"versions":["MODULAR_COPY","XACE-SELINUX-MERGE","XORG-6_7_99_1","XORG-6_7_99_2","XORG-6_7_99_902","XORG-6_7_99_903","XORG-6_8_1","XORG-6_8_99_10","XORG-6_8_99_13","XORG-6_8_99_14","XORG-6_8_99_15","XORG-6_8_99_6","XORG-6_8_99_7","XORG-6_8_99_9","XORG-6_8_99_900","XORG-6_8_99_901","XORG-6_8_99_902","XORG-6_8_99_903","XORG-6_99_99_900","XORG-6_99_99_901","XORG-6_99_99_902","XORG-6_99_99_903","XORG-6_99_99_904","XORG-MAIN","libX11-1.0.99.1","libX11-1.0.99.2","libX11-1.1","libX11-1.1-RC1","libX11-1.1-RC2","libX11-1.1.1","libX11-1.1.2","libX11-1.1.3","libX11-1.1.4","libX11-1.1.99.2","libX11-1.2","libX11-1.2.1","libX11-1.2.2","libX11-1.2.99.901","libX11-1.3","libX11-1.3.1","libX11-1.3.2","libX11-1.3.3","libX11-1.3.4","libX11-1.3.99.901","libX11-1.3.99.902","libX11-1.3.99.903","libX11-1.4.0","libX11-1.4.1","libX11-1.4.2","libX11-1.4.3","libX11-1.4.4","libX11-1.4.99.1","libX11-1.4.99.901","libX11-1.4.99.902","libX11-1.5.0","libX11-1.5.99.901","libX11-1.5.99.902","libX11-1.6.0","libX11-1.6.1","libX11-1.6.2","libX11-1.6.3","libX11-1.6.4","libX11-1.6.5","libX11-1_0_1","libX11-1_0_2","libX11-1_0_3"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-14600.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"12.04"}]},{"events":[{"introduced":"0"},{"last_affected":"14.04"}]},{"events":[{"introduced":"0"},{"last_affected":"16.04"}]},{"events":[{"introduced":"0"},{"last_affected":"18.04"}]},{"events":[{"introduced":"0"},{"last_affected":"8.0"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}