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[ GLSA 200502-04 ] Squid: Multiple vulnerabilities
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Joined: 17 Apr 2002
Posts: 2602
Location: Baltimore, MD

PostPosted: Wed Feb 02, 2005 8:40 pm    Post subject: [ GLSA 200502-04 ] Squid: Multiple vulnerabilities Reply with quote

Gentoo Linux Security Advisory

Title: Squid: Multiple vulnerabilities (GLSA 200502-04)
Severity: normal
Exploitable: remote
Date: February 02, 2005
Bug(s): #79495, #78776, #80201, #80341
ID: 200502-04


Squid contains vulnerabilities in the code handling WCCP, HTTP and LDAP
which could lead to Denial of Service, access control bypass, web cache and
log poisoning.


Squid is a full-featured Web proxy cache designed to run on Unix
systems. It supports proxying and caching of HTTP, FTP, and other
protocols, as well as SSL support, cache hierarchies, transparent
caching, access control lists and many other features.

Affected Packages

Package: net-proxy/squid
Vulnerable: < 2.5.7-r5
Unaffected: >= 2.5.7-r5
Architectures: All supported architectures


Squid contains several vulnerabilities:
  • Buffer overflow when handling WCCP recvfrom()
  • Loose checking of HTTP headers (CAN-2005-0173 and
  • Incorrect handling of LDAP login names with spaces


An attacker could exploit:
  • the WCCP buffer overflow to cause Denial of Service.
  • the HTTP header parsing vulnerabilities to inject arbitrary
    response data, potentially leading to content spoofing, web cache
    poisoning and other cross-site scripting or HTTP response splitting
  • the LDAP issue to login with several variations of the same login
    name, leading to log poisoning.


There is no known workaround at this time.


All Squid users should upgrade to the latest version:
# emerge --sync
    # emerge --ask --oneshot --verbose ">=net-proxy/squid-2.5.7-r5"



Last edited by GLSA on Tue Jul 08, 2014 4:18 am; edited 7 times in total
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