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Red Hat: CVE-2024-31083: xorg-x11-server: User-after-free in ProcRenderAddGlyphs (Multiple Advisories)

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Red Hat: CVE-2024-31083: xorg-x11-server: User-after-free in ProcRenderAddGlyphs (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
04/05/2024
Created
04/12/2024
Added
04/12/2024
Modified
05/01/2024

Description

A use-after-free vulnerability was found in the ProcRenderAddGlyphs() function of Xorg servers. This issue occurs when AllocateGlyph() is called to store new glyphs sent by the client to the X server, potentially resulting in multiple entries pointing to the same non-refcounted glyphs. Consequently, ProcRenderAddGlyphs() may free a glyph, leading to a use-after-free scenario when the same glyph pointer is subsequently accessed. This flaw allows an authenticated attacker to execute arbitrary code on the system by sending a specially crafted request.

Solution(s)

  • redhat-upgrade-tigervnc
  • redhat-upgrade-tigervnc-debuginfo
  • redhat-upgrade-tigervnc-debugsource
  • redhat-upgrade-tigervnc-icons
  • redhat-upgrade-tigervnc-license
  • redhat-upgrade-tigervnc-selinux
  • redhat-upgrade-tigervnc-server
  • redhat-upgrade-tigervnc-server-applet
  • redhat-upgrade-tigervnc-server-debuginfo
  • redhat-upgrade-tigervnc-server-minimal
  • redhat-upgrade-tigervnc-server-minimal-debuginfo
  • redhat-upgrade-tigervnc-server-module
  • redhat-upgrade-tigervnc-server-module-debuginfo
  • redhat-upgrade-xorg-x11-server-common
  • redhat-upgrade-xorg-x11-server-debuginfo
  • redhat-upgrade-xorg-x11-server-devel
  • redhat-upgrade-xorg-x11-server-source
  • redhat-upgrade-xorg-x11-server-xdmx
  • redhat-upgrade-xorg-x11-server-xephyr
  • redhat-upgrade-xorg-x11-server-xnest
  • redhat-upgrade-xorg-x11-server-xorg
  • redhat-upgrade-xorg-x11-server-xvfb
  • redhat-upgrade-xorg-x11-server-xwayland

References

  • CVE-2024-31083
  • RHSA-2024:1785
  • RHSA-2024:2036
  • RHSA-2024:2037
  • RHSA-2024:2038
  • RHSA-2024:2039
  • RHSA-2024:2040
  • RHSA-2024:2080
  • RHSA-2024:2616
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