USN-7409-1: RubySAML vulnerabilities

2 April 2025

Several security issues were fixed in ruby-saml.

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Details

It was discovered that ruby-saml did not correctly handle XML parsing.
An attacker could possibly use this issue to perform a signature
wrapping attack and bypass authentication. (CVE-2025-25291
and CVE-2025-25292)

It was discovered that ruby-saml did not correctly handle decompressing
SAML responses. An attacker could possibly use this issue to cause
a denial of service. (CVE-2025-25293)

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

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

Ubuntu 24.10
Ubuntu 24.04
Ubuntu 22.04
Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04

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

References

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