squid - several

Several vulnerabilities have been discovered in Squid, the internet
object cache, the popular WWW proxy cache. The Common Vulnerabilities
and Exposures project identifies the following vulnerabilities:

• CAN-2005-0173
  LDAP is very forgiving about spaces in search filters and this
  could be abused to log in using several variants of the login
  name, possibly bypassing explicit access controls or confusing
  accounting.

• CAN-2005-0175
  Cache pollution/poisoning via HTTP response splitting has been
  discovered.

• CAN-2005-0194
  The meaning of the access controls becomes somewhat confusing if
  any of the referenced ACLs (access control lists) is declared
  empty, without any members.

• CAN-2005-0211
  The length argument of the WCCP recvfrom() call is larger than it
  should be. An attacker may send a larger than normal WCCP packet
  that could overflow a buffer.

For the stable distribution (woody) these problems have been fixed in
version 2.4.6-2woody6.

For the unstable distribution (sid) these problems have been fixed in
version 2.5.7-7.

We recommend that you upgrade your squid package.