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.
How to fix
- access.redhat.com/errata/RHSA-2024:1785
- access.redhat.com/errata/RHSA-2024:2036
- access.redhat.com/errata/RHSA-2024:2037
- access.redhat.com/errata/RHSA-2024:2038
- access.redhat.com/errata/RHSA-2024:2039
- access.redhat.com/errata/RHSA-2024:2040
- access.redhat.com/errata/RHSA-2024:2041
- access.redhat.com/errata/RHSA-2024:2042
- access.redhat.com/errata/RHSA-2024:2080
- access.redhat.com/errata/RHSA-2024:2616
- access.redhat.com/errata/RHSA-2024:3258
- access.redhat.com/errata/RHSA-2024:3261
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| xorg-x11-server | 21.1.12 | — |
| Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION | No range specified | — |
| enterprise_linux 7 | No range specified | — |
| enterprise_linux 8 | No range specified | — |
| rhel_tus 8.2 | No range specified | — |
| rhel_e4s 8.4 | No range specified | — |
| rhel_eus 8.6 | No range specified | — |
| rhel_eus 8.8 | No range specified | — |
| enterprise_linux 9 | No range specified | — |
| rhel_eus 9.0 | No range specified | — |
| rhel_eus 9.2 | No range specified | — |
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