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OpenAdvisories
Medium USN-6907-1 1 CVE

squid, squid3 vulnerability

Published Jul 23, 2024 · Updated Jun 25, 2026

Ecosystem: Ubuntu

Summary

Joshua Rogers discovered that Squid did not properly handle multi-byte
characters during Edge Side Includes (ESI) processing. A remote attacker
could possibly use this issue to cause a memory corruption error, leading
to a denial of service.

Fixed packages 5

ReleasePackageFixed in
Ubuntu · 20.04 LTS 20.04:LTS squid 4.10-1ubuntu1.13
Ubuntu · 22.04 LTS 22.04:LTS squid 5.9-0ubuntu0.22.04.2
Ubuntu · 24.04 LTS 24.04:LTS squid 6.6-1ubuntu5.1
Ubuntu · Pro 16.04 LTS Pro:16.04:LTS squid3 3.5.12-1ubuntu7.16+esm4
Ubuntu · Pro 18.04 LTS Pro:18.04:LTS squid3 3.5.27-1ubuntu1.14+esm3

Vulnerabilities 1

  • Medium 6.3
    CVE-2024-37894

    Squid vulnerable to heap corruption in ESI assign

    Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to an Out-of-bounds Write error when assigning ESI variables, Squid is susceptible to a Memory Corruption error. This error can lead to a Denial of Service attack.

    squid-cache squid squid squid3 Debian Ubuntu Azure Linux

References

  • report
    https://ubuntu.com/security/CVE-2024-37894