CVE-2025-12105

Summary

A flaw was found in the asynchronous message queue handling of the libsoup library, widely used by GNOME and WebKit-based applications to manage HTTP/2 communications. When network operations are aborted at specific timing intervals, an internal message queue item may be freed twice due to missing state synchronization. This leads to a use-after-free memory access, potentially crashing the affected application. Attackers could exploit this behavior remotely by triggering specific HTTP/2 read and cancel sequences, resulting in a denial-of-service condition.

Affected Software

VendorProductVersion RangeStatus
GNOMElibsoup0 <= 3.6.5affected
Red HatRed Hat Enterprise Linux 100:3.6.5-3.el10_1.7 < *unaffected
Red HatRed Hat Enterprise Linux 10.0 Extended Update Support0:3.6.5-3.el10_0.10 < *unaffected

Weaknesses

  • CWE-416: Use After Free

Workarounds

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to a widespread installation base, or stability.

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References