[ GLSA 200502-04 ] Squid: Multiple vulnerabilities

[GLSA]

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

Synopsis


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.


Background


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


Description


Squid contains several vulnerabilities:

• Buffer overflow when handling WCCP recvfrom()
  (CAN-2005-0211).
• Loose checking of HTTP headers (CAN-2005-0173 and
  CAN-2005-0174).
• Incorrect handling of LDAP login names with spaces
  (CAN-2005-0175).

Impact


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
  attacks.
• the LDAP issue to login with several variations of the same login
  name, leading to log poisoning.

Workaround


There is no known workaround at this time.


Resolution


All Squid users should upgrade to the latest version: