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OpenAdvisories
Medium USN-7804-2 1 CVE

squid, squid3 vulnerability

Published Nov 4, 2025 · Updated Jun 25, 2026

Summary

USN-7804-1 fixed a vulnerability in Squid. This update provides the
corresponding update for Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu
20.04 LTS.

Original advisory details:

It was discovered that Squid incorrectly handled certain long SNMP OIDs. A
remote attacker could possibly use this issue to cause Squid to crash,
resulting in a denial of service.

Fixed packages 3

ReleasePackageFixed in
Ubuntu · Pro 16.04 LTS Pro:16.04:LTS squid3 3.5.12-1ubuntu7.16+esm6
Ubuntu · Pro 18.04 LTS Pro:18.04:LTS squid3 3.5.27-1ubuntu1.14+esm5
Ubuntu · Pro 20.04 LTS Pro:20.04:LTS squid 4.10-1ubuntu1.13+esm2

Vulnerabilities 1

References

  • report
    https://ubuntu.com/security/CVE-2025-59362