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Buffer Over-read The advisory has been revoked - it doesn't affect any version of package xorg-x11-server  (opens in a new tab)

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EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-CENTOS8-XORGX11SERVER-6543907
  • published4 Apr 2024
  • disclosed3 Apr 2024
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Introduced: 3 Apr 2024

CVE-2024-31080  (opens in a new tab)
CWE-126  (opens in a new tab)

Amendment

The Centos security team deemed this advisory irrelevant for Centos:8.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xorg-x11-server package and not the xorg-x11-server package as distributed by Centos.

A heap-based buffer over-read vulnerability was found in the X.org server's ProcXIGetSelectedEvents() 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.

References