{"id":"CLSA-2026-1792609205","summary":"libX11: Fix of 6 CVEs","details":"- CVE-2018-14599: fix off-by-one writes in XListExtensions, XGetFontPath and XListFonts\n- CVE-2018-14600: fix out-of-bounds write in XListExtensions and XGetFontPath\n- CVE-2018-14598: fix crash on invalid reply in XListExtensions and XGetFontPath\n- CVE-2021-31535: reject strings longer than USHRT_MAX before sending them on the wire\n- CVE-2023-3138: add bounds checks for extension request, event and error codes\n- CVE-2023-43787: fix integer overflow in XCreateImage leading to heap overflow","modified":"2026-10-26T09:43:44.530069186Z","published":"2026-10-21T20:48:54Z","upstream":["CVE-2018-14598","CVE-2018-14599","CVE-2018-14600","CVE-2021-31535","CVE-2023-3138","CVE-2023-43787"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/centos6els/CLSA-2026-1792609205.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2018-14598"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2018-14599"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2018-14600"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-31535"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3138"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-43787"}],"affected":[{"package":{"name":"libX11","ecosystem":"TuxCare:CentOS:6","purl":"pkg:rpm/tuxcare/libX11?distro=centos-6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.4-4.el6_10.tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2026-1792609205.json"}},{"package":{"name":"libX11-common","ecosystem":"TuxCare:CentOS:6","purl":"pkg:rpm/tuxcare/libX11-common?distro=centos-6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.4-4.el6_10.tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2026-1792609205.json"}},{"package":{"name":"libX11-devel","ecosystem":"TuxCare:CentOS:6","purl":"pkg:rpm/tuxcare/libX11-devel?distro=centos-6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.4-4.el6_10.tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2026-1792609205.json"}}],"schema_version":"1.9.0"}