Xorg-x11-server: heap buffer overread/data leakage in procappledricreatepixmap
Summary
Xorg-x11-server: heap buffer overread/data leakage in procappledricreatepixmap
Original description
The description as published by the source.
A heap-based buffer over-read vulnerability was found in the X.org server's ProcAppleDRICreatePixmap() function. This issue occurs when byte-swapped length values are used in replies, potentially leading to memory leakage and segmentation faults, particularly when triggered by a client with a different endianness. This vulnerability could be exploited by an attacker to cause the X server to read heap memory values and then transmit them back to the client until encountering an unmapped page, resulting in a crash. Despite the attacker's inability to control the specific memory copied into the replies, the small length values typically stored in a 32-bit integer can result in significant attempted out-of-bounds reads.
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2024-31082 xorg-server Fixed in: 2:1.20.11-1+deb11u13
References
- advisory access.redhat.com
- advisory github.com
- advisory nvd.nist.gov
- package gitlab.freedesktop.org
- report bugzilla.redhat.com
- web openwall.com
- web openwall.com
- web access.redhat.com
- web lists.x.org