CVE-2024-37894

Squid vulnerable to heap corruption in ESI assign

State: Published
Severity: 6.3 Medium
Published: Jun 25, 2024
Updated: Nov 3, 2025
Reserved: Jun 10, 2024

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	6.3 Medium	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H	GitHub_M

Weaknesses

CWE-787 Out-of-bounds Write

Affected Products

Product	Versions
squidsquid-cache	>= 3.0, <= 3.5.28Affected >= 4.0, <= 4.16Affected >= 5.0, <= 5.9Affected >= 6.0, <= 6.9Affected

References

https://github.com/squid-cache/squid/security/advisories/GHSA-wgvf-q977-9xjg
https://github.com/squid-cache/squid/commit/f411fe7d75197852f0e5ee85027a06d58dd8df4c.patch
https://security.netapp.com/advisory/ntap-20240719-0001/
https://lists.debian.org/debian-lts-announce/2025/03/msg00009.html

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