{"id":"UBUNTU-CVE-2020-14344","details":"An integer overflow leading to a heap-buffer overflow was found in The X Input Method (XIM) client was implemented in libX11 before version 1.6.10. As per upstream this is security relevant when setuid programs call XIM client functions while running with elevated privileges. No such programs are shipped with Red Hat Enterprise Linux.","modified":"2026-04-22T14:03:40.940690Z","published":"2020-08-05T14:15:00Z","related":["USN-4487-1","USN-4487-2"],"upstream":["CVE-2020-14344"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-14344"},{"type":"REPORT","url":"https://lists.x.org/archives/xorg-announce/2020-July/003050.html"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4487-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4487-2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-14344"}],"affected":[{"package":{"name":"libx11","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/libx11@2:1.6.2-1ubuntu2.1+esm1?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.6.2-1ubuntu2.1+esm1"}]}],"versions":["2:1.6.1-1ubuntu1","2:1.6.1-1ubuntu2","2:1.6.2-1ubuntu1","2:1.6.2-1ubuntu2","2:1.6.2-1ubuntu2.1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"libx11-6","binary_version":"2:1.6.2-1ubuntu2.1+esm1"},{"binary_name":"libx11-data","binary_version":"2:1.6.2-1ubuntu2.1+esm1"},{"binary_name":"libx11-xcb1","binary_version":"2:1.6.2-1ubuntu2.1+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-14344.json"}},{"package":{"name":"libx11","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libx11@2:1.6.3-1ubuntu2.2?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.6.3-1ubuntu2.2"}]}],"versions":["2:1.6.3-1ubuntu2","2:1.6.3-1ubuntu2.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"2:1.6.3-1ubuntu2.2","binary_name":"libx11-6"},{"binary_name":"libx11-data","binary_version":"2:1.6.3-1ubuntu2.2"},{"binary_name":"libx11-xcb1","binary_version":"2:1.6.3-1ubuntu2.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-14344.json"}},{"package":{"name":"libx11","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libx11@2:1.6.4-3ubuntu0.3?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.6.4-3ubuntu0.3"}]}],"versions":["2:1.6.4-3","2:1.6.4-3ubuntu0.1","2:1.6.4-3ubuntu0.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libx11-6","binary_version":"2:1.6.4-3ubuntu0.3"},{"binary_name":"libx11-data","binary_version":"2:1.6.4-3ubuntu0.3"},{"binary_name":"libx11-xcb1","binary_version":"2:1.6.4-3ubuntu0.3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-14344.json"}},{"package":{"name":"libx11","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libx11@2:1.6.9-2ubuntu1.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.6.9-2ubuntu1.1"}]}],"versions":["2:1.6.8-1","2:1.6.9-2","2:1.6.9-2ubuntu1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libx11-6","binary_version":"2:1.6.9-2ubuntu1.1"},{"binary_name":"libx11-data","binary_version":"2:1.6.9-2ubuntu1.1"},{"binary_name":"libx11-xcb1","binary_version":"2:1.6.9-2ubuntu1.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-14344.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}