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Ubuntu 25.04: Critical CUPS Auth Bypass and DoS Vulnerabilities USN-7745-1

ubuntu
Calendar Grey September 11, 2025
Dist Ubuntu Esm H88
Ubuntu Security Notice USN-7745-1 highlights multiple vulnerabilities within CUPS, notably including an authentication bypass and denial of service risks.
Several security issues were fixed in CUPS.

Summary

Several security issues were fixed in CUPS.

Software Description:

- cups: Common UNIX Printing System(tm)

Details:

It was discovered that CUPS incorrectly handled authentication types other

than Basic. An attacker could possibly use this issue to bypass

authentication. (CVE-2025-58060)

It was discovered that CUPS incorrectly handled deserialization and

validation of printer attributes. An attacker could possibly use this

issue to cause a denial of service. (CVE-2025-58364)

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu cups authentication bypass

Update Instructions

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

Ubuntu 25.04
  cups                            2.4.12-0ubuntu1.1

Ubuntu 24.04 LTS
  cups                            2.4.7-1.2ubuntu7.4

Ubuntu 22.04 LTS
  cups                            2.4.1op1-1ubuntu4.12

Ubuntu 20.04 LTS
  cups                            2.3.1-9ubuntu1.9+esm1
                                  Available with Ubuntu Pro

Ubuntu 18.04 LTS
  cups                            2.2.7-1ubuntu2.10+esm7
                                  Available with Ubuntu Pro

Ubuntu 16.04 LTS
  cups                            2.1.3-4ubuntu0.11+esm9
                                  Available with Ubuntu Pro

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

References

https://ubuntu.com/security/notices/USN-7745-1

CVE-2025-58060, CVE-2025-58364

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7745-1

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu cups authentication bypass

Package Information

https://launchpad.net/ubuntu/+source/cups/2.4.12-0ubuntu1.1
https://launchpad.net/ubuntu/+source/cups/2.4.1op1-1ubuntu4.12

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