Debian Linux Security Advisory 2304-1 - Ben Hawkes discovered that squid3, a full featured Web Proxy cache (HTTP proxy), is vulnerable to a buffer overflow when processing gopher server replies. An attacker can exploit this flaw by connecting to a gopher server that returns lines longer than 4096 bytes. This may result in denial of service conditions (daemon crash) or the possibly the execution of arbitrary code with rights of the squid daemon.
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Debian Security Advisory DSA-2304-1 security@debian.org
http://www.debian.org/security/ Nico Golde
Sep 11, 2011 http://www.debian.org/security/faq
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Package : squid3
Vulnerability : buffer overflow
Problem type : remote
Debian-specific: no
Debian bug : 639755
CVE IDs : CVE-2011-3205
Ben Hawkes discovered that squid3, a full featured Web Proxy cache
(HTTP proxy), is vulnerable to a buffer overflow when processing gopher
server replies. An attacker can exploit this flaw by connecting to a
gopher server that returns lines longer than 4096 bytes. This may result
in denial of service conditions (daemon crash) or the possibly the
execution of arbitrary code with rights of the squid daemon.
For the oldstable distribution (lenny), this problem has been fixed in
version 3.0.STABLE8-3+lenny5.
For the stable distribution (squeeze), this problem has been fixed in
version 3.1.6-1.2+squeeze1.
For the testing distribution (wheezy), this problem has been fixed in
version 3.1.15-1.
For the unstable distribution (sid), this problem has been fixed in
version 3.1.15-1.
We recommend that you upgrade your squid3 packages.
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
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