CVEvulnerability

CVE-2023-50269

7.5 HIGH Published 2023-12-14 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-12-14
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.6 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-674

Description

Squid is a caching proxy for the Web. Due to an Uncontrolled Recursion bug in versions 2.6 through 2.7.STABLE9, versions 3.1 through 5.9, and versions 6.0.1 through 6.5, Squid may be vulnerable to a Denial of Service attack against HTTP Request parsing. This problem allows a remote client to perform Denial of Service attack by sending a large X-Forwarded-For header when the follow_x_forwarded_for feature is configured. This bug is fixed by Squid version 6.6. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives.

Affected configurations

• squid-cache squid (>= 3.1 <= 5.9) • squid-cache squid (>= 6.0.1 <= 6.5) • squid-cache squid 2.6 • squid-cache squid 2.7

Related

Weakness · CWE (1)

  • CWE-674 Uncontrolled Recursion weakness

References