CVE-2024-31083

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.

References

https://lists.fedoraproject.org/archives/list/[email protected]/message/P73U4DAAWLFZAPD75GLXTGMSTTQWW5AP/

https://lists.fedoraproject.org/archives/list/[email protected]/message/EBLQJIAXEDMEGRGZMSH7CWUJHSVKUWLV/

https://lists.fedoraproject.org/archives/list/[email protected]/message/6TF7FZXOKHIKPZXYIMSQXKVH7WITKV3V/

https://lists.debian.org/debian-lts-announce/2024/04/msg00009.html

https://bugzilla.redhat.com/show_bug.cgi?id=2272000

https://access.redhat.com/security/cve/CVE-2024-31083

https://access.redhat.com/errata/RHSA-2024:3343

https://access.redhat.com/errata/RHSA-2024:3261

https://access.redhat.com/errata/RHSA-2024:3258

https://access.redhat.com/errata/RHSA-2024:2616

https://access.redhat.com/errata/RHSA-2024:2080

https://access.redhat.com/errata/RHSA-2024:2042

https://access.redhat.com/errata/RHSA-2024:2041

https://access.redhat.com/errata/RHSA-2024:2040

https://access.redhat.com/errata/RHSA-2024:2039

https://access.redhat.com/errata/RHSA-2024:2038

https://access.redhat.com/errata/RHSA-2024:2037

https://access.redhat.com/errata/RHSA-2024:2036

https://access.redhat.com/errata/RHSA-2024:1785

http://www.openwall.com/lists/oss-security/2024/04/12/10

http://www.openwall.com/lists/oss-security/2024/04/03/13

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3