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[USN-7565-1] libsoup vulnerabilities

Posted on 12 June 2025
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-7565-1
June 11, 2025

libsoup2.4 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in libsoup.

Software Description:
- libsoup2.4: HTTP client/server library for GNOME

Details:

It was discovered that libsoup did not correctly handle memory while
performing UTF-8 conversions. An attacker could possibly use this issue
to cause a denial of service or execute arbitrary code. This issue only
affected Ubuntu 16.04 LTS. (CVE-2024-52531)

It was discovered that libsoup could enter an infinite loop when reading
certain websocket data. An attacker could possibly use this issue to
cause a denial of service. This issue only affected Ubuntu 16.04 LTS.
(CVE-2024-52532)

It was discovered that libsoup could be made to read out of bounds. An
attacker could possibly use this issue to cause applications using
libsoup to crash, resulting in a denial of service. (CVE-2025-2784,
CVE-2025-32050, CVE-2025-32052, CVE-2025-32053)

Update instructions:

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

Ubuntu 18.04 LTS
libsoup2.4-1 2.62.1-1ubuntu0.4+esm5
Available with Ubuntu Pro

Ubuntu 16.04 LTS
libsoup2.4-1 2.52.2-1ubuntu0.3+esm4
Available with Ubuntu Pro

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

References:
https://ubuntu.com/security/notices/USN-7565-1
CVE-2024-52531, CVE-2024-52532, CVE-2025-2784, CVE-2025-32050,
CVE-2025-32052, CVE-2025-32053

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