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Servers and applications

CVE-2024-23638

SQUID-2023:11 Denial of Service in Cache Manager

Severity
Medium 6.5
Published
23 Jan 2024
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
6.6
Also known as
GHSA-j49p-553x-48rx
Sources
NVD, Project advisories (GitHub)

Description

Squid is a caching proxy for the Web. Due to an expired pointer reference bug, Squid prior to version 6.6 is vulnerable to a Denial of Service attack against Cache Manager error responses. This problem allows a trusted client to perform Denial of Service when generating error pages for Client Manager reports. Squid older than 5.0.5 have not been tested and should be assumed to be vulnerable. All…

Affected software

SoftwareAffected versions
SquidServers and applications · cpe:a:squid-cache:squid
  • From 5.0 up to 5.9
  • From 6.0 before 6.6
SquidServers and applications · github:squid-cache/squid
  • Every version before 6.6

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2024-23638
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2024-23638
  • GitHub Advisory Database https://github.com/advisories/GHSA-j49p-553x-48rx
  • github.com https://github.com/squid-cache/squid/security/advisories/GHSA-j49p-553x-48rx