CVE-2023-50269

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CVE-2023-50269

Summary: SQUID-2023:10 Denial of Service in HTTP Request parsing

Details: 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.

References: http://www.squid-cache.org/Versions/v5/SQUID-2023_10.patch, http://www.squid-cache.org/Versions/v6/SQUID-2023_10.patch, https://lists.debian.org/debian-lts-announce/2024/01/msg00003.html, https://lists.fedoraproject.org/archives/list/[email protected]/message/A5QASTMCUSUEW3UOMKHZJB3FTONWSRXS/, https://lists.fedoraproject.org/archives/list/[email protected]/message/MEV66D3PAAY6K7TWDT3WZBLCPLASFJDC/, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/50xxx/CVE-2023-50269.json, https://github.com/squid-cache/squid/security/advisories/GHSA-wgq4-4cfg-c4x3, https://nvd.nist.gov/vuln/detail/CVE-2023-50269, https://security.netapp.com/advisory/ntap-20240119-0005/