The strHdrAcptLangGetItem function in errorpage.cc in Squid 3.2.x before 3.2.9 and 3.3.x before 3.3.3 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a "," character in an Accept-Language header.
CVSS Severity (version 2.0):
Impact Subscore: 6.9
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows disruption of service
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20130305 Squid 3.2.7 DoS (loop, 100% cpu) strHdrAcptLangGetItem() at errorpage.cc
20130307 Re: Squid 3.2.7 DoS (loop, 100% cpu) strHdrAcptLangGetItem() at errorpage.cc
[oss-security] 20130311 Re: Squid 3.2.7 DoS (loop, 100% cpu) strHdrAcptLangGetItem() at errorpage.cc