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Servers and applications

CVE-2023-46847

SQUID-2023:3 Denial of Service in HTTP Digest Authentication

Severity
High 7.5
Published
21 Oct 2023
Last changed
7 Aug 2026
Added to UpHeron
1 Nov 2026
Fixed in
6.4
Also known as
GHSA-phqj-m8gv-cq4g
Sources
NVD, Project advisories (GitHub)

Description

Squid is vulnerable to a Denial of Service, where a remote attacker can perform buffer overflow attack by writing up to 2 MB of arbitrary data to heap memory when Squid is configured to accept HTTP Digest Authentication.

Affected software

SoftwareAffected versions
SquidServers and applications · cpe:a:squid-cache:squid
  • From 3.2.0.1 before 6.4
SquidServers and applications · github:squid-cache/squid
  • From 6.0 before 6.4

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-46847
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-46847
  • GitHub Advisory Database https://github.com/advisories/GHSA-phqj-m8gv-cq4g
  • github.com https://github.com/squid-cache/squid/security/advisories/GHSA-phqj-m8gv-cq4g