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Alma Linux: CVE-2024-31080: Important: tigervnc security update (ALSA-2024-2616)

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Alma Linux: CVE-2024-31080: Important: tigervnc security update (ALSA-2024-2616)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
04/04/2024
Created
04/30/2024
Added
04/30/2024
Modified
05/22/2024

Description

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.

Solution(s)

  • alma-upgrade-tigervnc
  • alma-upgrade-tigervnc-icons
  • alma-upgrade-tigervnc-license
  • alma-upgrade-tigervnc-selinux
  • alma-upgrade-tigervnc-server
  • alma-upgrade-tigervnc-server-minimal
  • alma-upgrade-tigervnc-server-module

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