CVE-2023-50269

high · 8.6

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.

8.6

CVSS

57.6%

EPSS (exploit prob.)

99th

EPSS percentile

2023-12-14

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Weaknesses

CWE-674

Affected products

Vendor	Product	Affected versions
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
squid-cache	squid	2.7
squid-cache	squid	2.7
squid-cache	squid	2.7
squid-cache	squid	2.7
squid-cache	squid	2.7
squid-cache	squid	2.7
squid-cache	squid	2.7
squid-cache	squid	2.7
squid-cache	squid	2.7

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2023-50269