Summary
[24.1.9-4.3]
- CVE fix for: CVE-2026-55999, CVE-2026-56000
Resolves: https://redhat.atlassian.net/browse/RHEL-191532
Resolves: https://redhat.atlassian.net/browse/RHEL-191524
Fixed packages 2
| Release | Package | Fixed in |
|---|---|---|
| Oracle Linux · 9 | xorg-x11-server-Xwayland | 0:24.1.9-4.el9_8.3 |
| Oracle Linux · 9 | xorg-x11-server-Xwayland-devel | 0:24.1.9-4.el9_8.3 |
Vulnerabilities 2
-
Critical 9.0
xorg-x11-server / xwayland GLX contextTags Use-After-Free in CommonMakeCurrent()
Local attackers with a X connection able to provide GLX commit to the X server xorg-server before 21.2.24 and xwayland before 24.1.13 could cause a Heap Use After Free, due to CommonMakeCurrent() pointing into potentially reallocated memory.
-
High 8.5
xorg-server / xwayland glamor font atlas Heap Buffer Overflow
Local attackers with a X connection able to provide PCX fonts to the X server xorg-server before 21.2.24 and xwayland before 24.1.13 could cause a heap buffer overflow via SetFont due to missing glyph boundary checks.