[CLSA-2026:1788372946] xorg-x11-server: Fix of 5 CVEs
Type:
security
Severity:
Important
Release date:
2026-09-02 18:15:59 UTC
Description:
- CVE-2026-50257: fix use-after-free in miSyncDestroyFence() when a fence is destroyed while an Await group still references it - CVE-2026-50258: fix stack buffer overflow in XKB CheckKeyTypes() by rejecting key types whose numLevels exceeds XkbMaxShiftLevel - CVE-2026-50259: fix stack buffer overflow in XKB CheckKeyTypes() by clamping nMaps to the mapWidths buffer size - CVE-2026-50260: fix use-after-free in FreeCounter() when a SyncCounter is destroyed while an Await group still references it - CVE-2026-50261: fix use-after-free in SyncChangeCounter() by restarting trigger list iteration after a trigger fires
Updated packages:
  • xorg-x11-server-Xdmx-1.20.4-99.el7_9.tuxcare.els11.x86_64.rpm
    sha:8321812c806349a0c632d8ca547bd3cdf0551a32eb1500fe848a518a4be6cf5a
  • xorg-x11-server-Xephyr-1.20.4-99.el7_9.tuxcare.els11.x86_64.rpm
    sha:126a75234f8218d52f18519b3a5521835cbd2875cf87404fff3eefd98fce9abf
  • xorg-x11-server-Xnest-1.20.4-99.el7_9.tuxcare.els11.x86_64.rpm
    sha:eac26156c16c47a4e74e02ff82bdd01f129951487d4b48dc3eb93648dfc139ec
  • xorg-x11-server-Xorg-1.20.4-99.el7_9.tuxcare.els11.x86_64.rpm
    sha:dad61ec2fbd8f86b38880120a830f729a0e29e760e7f4f322d5262f7e250cb2a
  • xorg-x11-server-Xvfb-1.20.4-99.el7_9.tuxcare.els11.x86_64.rpm
    sha:4ef7e5bdee4322d8cc098ffd6a132e0b2b1ee53ca36da98aca266bb0a13d347e
  • xorg-x11-server-Xwayland-1.20.4-99.el7_9.tuxcare.els11.x86_64.rpm
    sha:c45c6802c99562b2c8dd1694c5a82ed954dcceaed2524788bddf9eb4d9b1172e
  • xorg-x11-server-common-1.20.4-99.el7_9.tuxcare.els11.x86_64.rpm
    sha:1f1a92379b759f2058dd0cc431be826f2792c010c59f4a29eef696814d8b3fc4
  • xorg-x11-server-devel-1.20.4-99.el7_9.tuxcare.els11.i686.rpm
    sha:b2e7eba72cabd76d8384437793fd1c441de69d1ea4e450243b7432ddb1945ea3
  • xorg-x11-server-devel-1.20.4-99.el7_9.tuxcare.els11.x86_64.rpm
    sha:64a2cc20ba8d18ff93f1088b0877013dacc1cfc8843aa59fa18a547c81040f20
  • xorg-x11-server-source-1.20.4-99.el7_9.tuxcare.els11.noarch.rpm
    sha:a34bbab06cbb0c0114c00b66a5ae8ed161e11cdc4eae5f7b4fd7f8e57afd9d35
Notes:
This page is generated automatically and has not been checked for errors. For clarification or corrections please contact the CloudLinux Packaging Team.