Julien Danjou uploaded new packages for squid3 which fixed the
following security problems:
CVE-2010-2951
When IPv6 DNS resolution is not enabled, accesses an invalid socket
during an IPv4 TCP DNS query, which allows remote attackers to cause
a denial of service (assertion failure and daemon exit) via vectors
that trigger an IPv4 DNS response with the TC bit set.
CVE-2010-3072
Due to an internal error in string handling Squid is vulnerable to a
denial of service attack when processing specially crafted requests.
This problem allows any trusted client to perform a denial of service
attack on the Squid service.
For the lenny-backports distribution the problems have been fixed in
version 3.1.6-1.2~bpo50+1.
If you don't use pinning (see [1]) you have to update the package
manually via "apt-get -t lenny-backports install <packagelist>" with
the packagelist of your installed packages affected by this update.
[1] <https://backports.debian.org/Instructions>
We recommend to pin (in /etc/apt/preferences) the backports repository
to 200 so that new versions of installed backports will be installed
automatically.
Package: *
Pin: release a=lenny-backports
Pin-Priority: 200