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Ubuntu 25.10: libsoup Important DoS Issue USN-7932-1 CVE-2025-12105

ubuntu
Calendar Grey December 15, 2025
Dist Ubuntu Esm H88
A critical update for libsoup addressing a denial of service weakness. Update your Ubuntu system to safeguard yourself.
libsoup could be made to crash if it received specially crafted network traffic.

Summary

libsoup could be made to crash if it received specially crafted network

traffic.

Software Description:

- libsoup3: HTTP client/server library for GNOME

Details:

It was discovered libsoup incorrectly handled memory when handling specific

HTTP/2 read and cancel sequences. An attacker could possibly use this issue

to cause a denial of service.

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu important network traffic libsoup

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 25.10
  libsoup-3.0-0                   3.6.5-4ubuntu0.1

Ubuntu 25.04
  libsoup-3.0-0                   3.6.5-1ubuntu0.3

Ubuntu 24.04 LTS
  libsoup-3.0-0                   3.4.4-5ubuntu0.6

Ubuntu 22.04 LTS
  libsoup-3.0-0                   3.0.7-0ubuntu1+esm6
                                  Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-7932-1

CVE-2025-12105

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7932-1

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu important network traffic libsoup

Package Information

https://launchpad.net/ubuntu/+source/libsoup3/3.6.5-4ubuntu0.1
https://launchpad.net/ubuntu/+source/libsoup3/3.6.5-1ubuntu0.3
https://launchpad.net/ubuntu/+source/libsoup3/3.4.4-5ubuntu0.6

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