{"id":"openSUSE-SU-2026:21273-1","summary":"Security update for xorg-x11-server","details":"This update for xorg-x11-server fixes the following issues\n\n- CVE-2026-55999: missing bounds check in `glamor_font_get` can lead to a heap buffer overflow when a font loaded from\n  a malicious PCF file is processed (bsc#1268893).\n- CVE-2026-56000: improper memory management in `CommonMakeCurrent` can lead to a heap use-after-free when an\n  interaction with a malicious client creating GLX contexts happens (bsc#1268894).\n","modified":"2026-07-11T18:24:33.272403962Z","published":"2026-07-08T17:58:06Z","related":["CVE-2026-55999","CVE-2026-56000"],"upstream":["CVE-2026-55999","CVE-2026-56000"],"references":[{"type":"ADVISORY"},{"type":"REPORT","url":"https://bugzilla.suse.com/1268893"},{"type":"REPORT","url":"https://bugzilla.suse.com/1268894"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-55999"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-56000"}],"affected":[{"package":{"name":"xorg-x11-server","ecosystem":"openSUSE:Leap 16.0","purl":"pkg:rpm/opensuse/xorg-x11-server&distro=openSUSE%20Leap%2016.0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"21.1.15-160000.6.1"}]}],"ecosystem_specific":{"binaries":[{"xorg-x11-server-Xvfb":"21.1.15-160000.6.1","xorg-x11-server-extra":"21.1.15-160000.6.1","xorg-x11-server-sdk":"21.1.15-160000.6.1","xorg-x11-server-source":"21.1.15-160000.6.1","xorg-x11-server-wrapper":"21.1.15-160000.6.1","xorg-x11-server":"21.1.15-160000.6.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/openSUSE-SU-2026:21273-1.json"}}],"schema_version":"1.7.5"}