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CVE-2009-2855
The strListGetItem function in src/HttpHeaderTools.c in Squid 2.7 allows remote attackers to cause a denial of service via a crafted auth…
Medium5.0EPSS 34.0%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 34.0% · top 1.6% of all CVEs (5 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
Affected products
n/a
- affected n/a
References (12)
- [oss-security] 20090803 Re: squid DoS in external auth header parser (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 36091 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=534982 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20090804 Re: squid DoS in external auth header parser (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://www.squid-cache.org/bugs/show_bug.cgi?id=2704 (opens in a new tab)x_refsource_MISCx_transferred
- http://www.squid-cache.org/bugs/show_bug.cgi?id=2541 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1022757 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- oval:org.mitre.oval:def:10592 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=518182 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20090720 squid DoS in external auth header parser (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- squid-strlistgetitem-dos(52610) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- http://bugs.debian.org/cgi-bin/bugreport.cgi?msg=31%3Bfilename=diff%3Batt=1%3Bbug=534982 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2009-2855)Record last updated .