PT-2025-43435 · Gnome+3 · Libsoup+3
Published
2025-10-23
·
Updated
2026-05-15
·
CVE-2025-12105
CVSS v3.1
7.5
High
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
libsoup versions prior to 3.6.5-1ubuntu0.3
Description
The libsoup library contains a flaw in its asynchronous message queue handling, specifically when managing HTTP/2 communications. When network operations are aborted at certain times, an internal message queue item can be freed twice due to a lack of state synchronization. This results in a use-after-free memory access, which can cause the affected application to crash. An attacker could potentially exploit this behavior remotely by sending specific HTTP/2 read and cancel sequences, leading to a denial-of-service condition.
Recommendations
Update to libsoup version 3.6.5-1ubuntu0.3 or later.
Fix
DoS
RCE
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Debian
Linuxmint
Ubuntu
Libsoup