Debian: DSA-2040-2 Important: Squidguard Memory Corruption Concern

It was discovered that in squidguard, a URL redirector/filter/ACL plugin
for squid, several problems in src/sgLog.c and src/sgDiv.c allow remote
users to either:

* cause a denial of service, by requesting long URLs containing many
slashes; this forces the daemon into emergency mode, where it does
not process requests anymore.

* bypass rules by requesting URLs whose length is close to predefined
buffer limits, in this case 2048 for squidguard and 4096 or 8192 for
squid (depending on its version).

For the stable distribution (lenny), this problem has been fixed in
version 1.2.0-8.4+lenny1.

For the unstable distribution (sid), this problem has been fixed in
version 1.2.0-9.

We recommend that you upgrade your squidguard package.

Upgrade instructions
- --------------------

wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
wi...