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CVE-2023-50269

Public on 2023-12-14
Modified on 2024-01-11
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.

Severity
Important
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CVSS v3 Base Score
7.5
See breakdown
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 squid 2024-02-01 19:33 ALAS-2024-1916
Amazon Linux 2 - Core squid 2024-02-01 19:57 ALAS2-2024-2445
Amazon Linux 2023 squid 2024-01-03 23:20 ALAS2023-2024-467

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD CVSSv3 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H