{"id":"USN-4487-2","summary":"libx11 vulnerabilities","details":"USN-4487-1 fixed several vulnerabilities in libx11. This update provides\nthe corresponding update for Ubuntu 12.04 ESM and 14.04 ESM.\n\nOriginal advisory details:\n\n Todd Carson discovered that libx11 incorrectly handled certain memory\n operations. A local attacker could possibly use this issue to escalate\n privileges. (CVE-2020-14344)\n\n Jayden Rivers discovered that libx11 incorrectly handled locales. A local\n attacker could possibly use this issue to escalate privileges.\n (CVE-2020-14363)\n","modified":"2026-02-10T04:41:55Z","published":"2020-09-08T16:18:57Z","related":["UBUNTU-CVE-2020-14344","UBUNTU-CVE-2020-14363"],"upstream":["CVE-2020-14344","CVE-2020-14363","UBUNTU-CVE-2020-14344","UBUNTU-CVE-2020-14363"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4487-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-14344"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-14363"}],"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":{"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-dev","binary_version":"2:1.6.2-1ubuntu2.1+esm1"},{"binary_name":"libx11-xcb-dev","binary_version":"2:1.6.2-1ubuntu2.1+esm1"},{"binary_name":"libx11-xcb1","binary_version":"2:1.6.2-1ubuntu2.1+esm1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:14.04:LTS","cves":[{"id":"CVE-2020-14344","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"}]},{"id":"CVE-2020-14363","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4487-2.json"}}],"schema_version":"1.7.3"}