A use-after-free vulnerability was found in the...
High severity
Unreviewed
Published
Apr 5, 2024
to the GitHub Advisory Database
•
Updated May 22, 2024
Description
Published by the National Vulnerability Database
Apr 5, 2024
Published to the GitHub Advisory Database
Apr 5, 2024
Last updated
May 22, 2024
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.
References