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Alerts This Week
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Ubuntu 25.04: Squid Critical Denial of Service Vulnern USN-7804-1

ubuntu
Calendar Grey October 6, 2025
Dist Ubuntu Esm H88
Squid on Ubuntu is vulnerable to crafted traffic that may cause a crash, triggering need for an urgent update.
Squid could be made to crash if it received specially crafted network traffic.

Summary

Squid could be made to crash if it received specially crafted network

traffic.

Software Description:

- squid: Web proxy cache server

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.

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu squid network traffic

Update Instructions

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

Ubuntu 25.04
  squid                           6.13-1ubuntu1.1

Ubuntu 24.04 LTS
  squid                           6.13-0ubuntu0.24.04.2

Ubuntu 22.04 LTS
  squid                           5.9-0ubuntu0.22.04.3

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

References

https://ubuntu.com/security/notices/USN-7804-1

CVE-2025-59362

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7804-1

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu squid network traffic

Package Information

https://launchpad.net/ubuntu/+source/squid/6.13-0ubuntu0.24.04.2

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