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CVE-2009-2855

Date: August 18, 2009

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.

Severity Score

Related Resources (16)

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10592
http://www.securityfocus.com/bid/36091
https://bugzilla.redhat.com/show_bug.cgi?id=518182
http://www.openwall.com/lists/oss-security/2009/07/20/10
http://www.openwall.com/lists/oss-security/2009/08/04/6
https://nvd.nist.gov/vuln/detail/CVE-2009-2855
https://exchange.xforce.ibmcloud.com/vulnerabilities/52610
http://www.openwall.com/lists/oss-security/2009/08/03/3
http://www.squid-cache.org/bugs/show_bug.cgi?id=2541
https://people.canonical.com/~ubuntu-security/cve/CVE-2009-2855
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
https://access.redhat.com/security/cve/CVE-2009-2855
http://www.securitytracker.com/id?1022757
http://www.squid-cache.org/bugs/show_bug.cgi?id=2704
https://www.mend.io/vulnerability-database/CVE-2009-2855

Severity Score

Weakness Type (CWE)

Input Validation

CWE-20

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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