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.