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.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
None
Availability
High
Affected products
- squid-cache / squid>= 2.6, <= 2.7.STABLE9 – >= 2.6, <= 2.7.STABLE9
- squid-cache / squid>= 3.1, <= 5.9 – >= 3.1, <= 5.9
- squid-cache / squid>= 6.0.1, < 6.6 – >= 6.0.1, < 6.6
References
- VENDOR_ADVISORYhttps://github.com/squid-cache/squid/security/advisories/GHSA-wgq4-4cfg-c4x3
- MISChttp://www.squid-cache.org/Versions/v5/SQUID-2023_10.patch
- MISChttp://www.squid-cache.org/Versions/v6/SQUID-2023_10.patch
- MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MEV66D3PAAY6K7TWDT3WZBLCPLASFJDC/
- MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A5QASTMCUSUEW3UOMKHZJB3FTONWSRXS/
- MAILING_LISThttps://lists.debian.org/debian-lts-announce/2024/01/msg00003.html
- MISChttps://security.netapp.com/advisory/ntap-20240119-0005/
Updated 21m ago · 8 sources