CVE-2009-2855
MEDIUM · CVSS 5.0EPSS 34.0%EU EUVD
The strListGetItem function in src/HttpHeaderTools.c in Squid 2.7 allows remote attackers to cause a denial of service via a crafted auth header with certain comma delimiters that trigger an infinite loop of calls to the strcspn function.
Key facts
- CVSS score
- 5.0 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P- Weakness (CWE)
- CWE-20
- EPSS score
- 34.0% (98th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2009-2845)
- Published
- August 18, 2009
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2009-2845 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- squid-cache / squid
- squid-cache / squid
- squid-cache / squid
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=534982
- http://bugs.debian.org/cgi-bin/bugreport.cgi?msg=31%3Bfilename=diff%3Batt=1%3Bbug=534982
- http://www.openwall.com/lists/oss-security/2009/07/20/10
- http://www.openwall.com/lists/oss-security/2009/08/03/3
- http://www.openwall.com/lists/oss-security/2009/08/04/6
- http://www.securityfocus.com/bid/36091
- http://www.securitytracker.com/id?1022757
- http://www.squid-cache.org/bugs/show_bug.cgi?id=2541
- http://www.squid-cache.org/bugs/show_bug.cgi?id=2704(Vendor Advisory)
- https://bugzilla.redhat.com/show_bug.cgi?id=518182
- https://exchange.xforce.ibmcloud.com/vulnerabilities/52610
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10592
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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