USN-7490-1: libsoup vulnerabilities

USN-7490-1: libsoup vulnerabilities
6 May 2025

Several security issues were fixed in libsoup.

Releases

• Ubuntu 25.04
• Ubuntu 24.10
• Ubuntu 24.04 LTS
• Ubuntu 22.04 LTS
• Ubuntu 20.04 ESM
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

Packages
libsoup2.4 - HTTP client/server library for GNOME

Details
Tan Wei Chong discovered that libsoup incorrectly handled memory when
parsing HTTP request headers. An attacker could possibly use this issue to
send a maliciously crafted HTTP request to the server, causing a denial of
service. (CVE-2025-32906)

Alon Zahavi discovered that libsoup incorrectly parsed video files. An
attacker could possibly use this issue to send a maliciously crafted HTTP
response back to the client, causing a denial of service, or leading to
undefined behavior. (CVE-2025-32909)

Jan Różański discovered that libsoup incorrectly handled memory when
parsing authentication headers. An attacker could possibly use this issue
to send a maliciously crafted HTTP response back to the client, causing a
denial of service. (CVE-2025-32910, CVE-2025-32912)

It was discovered that libsoup incorrectly handled data in the hash table
data type. An attacker could possibly use this issue to send a maliciously
crafted HTTP request to the server, causing a denial of service or remote
code execution. (CVE-2025-32911)

Jan Różański discovered that libsoup incorrectly handled memory when
parsing the content disposition HTTP header. An attacker could possibly use
this issue to send maliciously crafted data to a client or server, causing
a denial of service. (CVE-2025-32913)

Alon Zahavi discovered that libsoup incorrectly handled memory when parsing
HTTP requests. An attacker could possibly use this issue to send a
maliciously crafted HTTP request to the server, causing a denial of service
or obtaining sensitive information. (CVE-2025-32914)

It was discovered that libsoup incorrectly handled memory when parsing
quality-list headers. An attacker could possibly use this issue to send a
maliciously crafted HTTP request to the server, causing a denial of
service. (CVE-2025-46420)

Jan Różański discovered that libsoup did not strip authorization
information upon redirects. An attacker could possibly use this issue to
obtain sensitive information. (CVE-2025-46421)

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

Ubuntu 25.04

• libsoup-2.4-1 - 2.74.3-10ubuntu0.1
  Ubuntu 24.10
• libsoup-2.4-1 - 2.74.3-7ubuntu0.3
  Ubuntu 24.04
• libsoup-2.4-1 - 2.74.3-6ubuntu1.3
  Ubuntu 22.04
• libsoup2.4-1 - 2.74.2-3ubuntu0.3
  Ubuntu 20.04
• libsoup2.4-1 - 2.70.0-1ubuntu0.3
  Ubuntu 18.04
• libsoup2.4-1 - 2.62.1-1ubuntu0.4+esm2
• Available with Ubuntu Pro
  Ubuntu 16.04
• libsoup2.4-1 - 2.52.2-1ubuntu0.3+esm1
• Available with Ubuntu Pro
  In general, a standard system update will make all the necessary changes.