{"id":"RLSA-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 Rocky Linux 8.8 Release Notes linked from the References section.","modified":"2026-06-27T00:30:05.130171404Z","published":"2026-06-27T00:01:04.193077Z","upstream":["CVE-2021-3782"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2023:2786"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2002627"}],"affected":[{"package":{"name":"wayland","ecosystem":"Rocky Linux:8","purl":"pkg:rpm/rocky-linux/wayland?distro=rocky-linux-8&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.21.0-1.el8"}],"database_specific":{"yum_repository":"AppStream"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2023:2786.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}