{"id":"ALSA-2023:2786","summary":"Moderate: wayland security, bug fix, and enhancement update","details":"Wayland is a protocol for a compositor to talk to its clients, as well as a C library implementation of that protocol. The compositor can be a standalone display server running on Linux kernel modesetting and evdev input devices, an X application, or a wayland client itself. The clients can be traditional applications, X servers (rootless or fullscreen) or other display servers.\n\nThe following packages have been upgraded to a later upstream version: wayland (1.21.0). (BZ#2137625)\n\nSecurity Fix(es):\n\n* wayland: libwayland-server wl_shm reference-count overflow (CVE-2021-3782)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.","modified":"2026-02-04T03:45:40.486022Z","published":"2023-05-16T00:00:00Z","related":["CVE-2021-3782"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2023:2786"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2021-3782"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2002627"},{"type":"ADVISORY","url":"https://errata.almalinux.org/8/ALSA-2023-2786.html"}],"affected":[{"package":{"name":"libwayland-client","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/libwayland-client"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.21.0-1.el8"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:2786.json"}},{"package":{"name":"libwayland-cursor","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/libwayland-cursor"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.21.0-1.el8"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:2786.json"}},{"package":{"name":"libwayland-egl","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/libwayland-egl"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.21.0-1.el8"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:2786.json"}},{"package":{"name":"libwayland-server","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/libwayland-server"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.21.0-1.el8"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:2786.json"}},{"package":{"name":"wayland-devel","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/wayland-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.21.0-1.el8"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:2786.json"}}],"schema_version":"1.7.3"}