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OpenAdvisories
Medium RLSA-2021:1804 9 CVEs

Moderate: userspace graphics, xorg-x11, and mesa security, bug fix, and enhancement update

Published May 18, 2021 · Updated Feb 4, 2026

Ecosystem: Rocky Linux

Summary

X.Org is an open-source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon.

Mesa provides a 3D graphics API that is compatible with Open Graphics Library (OpenGL). It also provides hardware-accelerated drivers for many popular graphics chips.

The following packages have been upgraded to a later upstream version: egl-wayland (1.1.5), libdrm (2.4.103), libglvnd (1.3.2), libinput (1.16.3), libwacom (1.6), mesa (20.3.3), xorg-x11-server (1.20.10). (BZ#1878160, BZ#1886648, BZ#1887654, BZ#1887655)

Security Fix(es):

* xorg-x11-server: Out-of-bounds access in XkbSetNames function (CVE-2020-14345)

* xorg-x11-server: Integer underflow in the X input extension protocol (CVE-2020-14346)

* xorg-x11-server: Out-of-bounds access in XkbSetMap function (CVE-2020-14360)

* xorg-x11-server: XkbSelectEvents integer underflow privilege escalation vulnerability (CVE-2020-14361)

* xorg-x11-server: XRecordRegisterClients integer underflow privilege escalation vulnerability (CVE-2020-14362)

* libX11: Integer overflow leads to double free in locale handling (CVE-2020-14363)

* xorg-x11-server: XkbSetDeviceInfo heap-based buffer overflow privilege escalation vulnerability (CVE-2020-25712)

* libX11: Heap overflow in the X input method client (CVE-2020-14344)

* xorg-x11-server: Leak of uninitialized heap memory from the X server to clients in AllocatePixmap of dix/pixmap.c (CVE-2020-14347)

For 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.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux 8.4 Release Notes linked from the References section.

Fixed packages 9

ReleasePackageFixed in
Rocky Linux · 8 egl-wayland 0:1.1.5-3.el8
Rocky Linux · 8 libdrm 0:2.4.103-1.el8
Rocky Linux · 8 libglvnd 1:1.3.2-1.el8
Rocky Linux · 8 libinput 0:1.16.3-1.el8
Rocky Linux · 8 libwacom 0:1.6-2.el8
Rocky Linux · 8 libX11 0:1.6.8-4.el8
Rocky Linux · 8 mesa 0:20.3.3-2.el8
Rocky Linux · 8 xorg-x11-drivers 0:7.7-30.el8
Rocky Linux · 8 xorg-x11-server 0:1.20.10-1.el8

Vulnerabilities 9

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1826141
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1854920
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1856738
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1862241
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1862246
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1862255
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1862258
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1863142
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1869139
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1869142
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1869144
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1872473
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1878160
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1886644
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1886648
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1887276
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1887654
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1887655
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1891871
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1896442
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1897439
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1914411