[SECURITY] [DSA 2040-1] New squidguard packages fix several vulnerabilities

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Debian Security Advisory DSA-2040-1 security@debian.org
http://www.debian.org/security/ Sébastien Delafond
May 02, 2010 http://www.debian.org/security/faq
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Package : squidguard
Vulnerability : buffer overflow
Problem type : remote
Debian-specific: no
CVE Ids : CVE-2009-3700, CVE-2009-3826
Debian Bug : 553319

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
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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
will update the internal database
apt-get upgrade
will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.

Debian GNU/Linux 5.0 alias lenny
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Stable updates are available for alpha, amd64, arm, armel, hppa, i386, ia64, mips, mipsel, powerpc, s390 and sparc.

Source archives:

http://security.debian.org/pool/updates/main/s/squidguard/squidguard_1.2.0-8.4+lenny1.diff.gz
Size/MD5 checksum: 96388 07777686b02bc2cee2af916b5bbcb6cf
http://security.debian.org/pool/updates/main/s/squidguard/squidguard_1.2.0.orig.tar.gz
Size/MD5 checksum: 1852659 f7044a2151827a2070e4c2be82b944b0
http://security.debian.org/pool/updates/main/s/squidguard/squidguard_1.2.0-8.4+lenny1.dsc
Size/MD5 checksum: 1064 72e5eea602be70def18b97ce364ee3bb

alpha architecture (DEC Alpha)

http://security.debian.org/pool/updates/main/s/squidguard/squidguard_1.2.0-8.4+lenny1_alpha.deb
Size/MD5 checksum: 144380 fad02a30f87a187d7ff4d155d12544c4

amd64 architecture (AMD x86_64 (AMD64))

http://security.debian.org/pool/updates/main/s/squidguard/squidguard_1.2.0-8.4+lenny1_amd64.deb
Size/MD5 checksum: 140890 b38e94f8a1b380d4ae40255896cd5332

arm architecture (ARM)

http://security.debian.org/pool/updates/main/s/squidguard/squidguard_1.2.0-8.4+lenny1_arm.deb
Size/MD5 checksum: 138620 77992d03a14fe075bf1c8e739498497d

armel architecture (ARM EABI)

http://security.debian.org/pool/updates/main/s/squidguard/squidguard_1.2.0-8.4+lenny1_armel.deb
Size/MD5 checksum: 137416 9b2568cc9566ba6b50592e21306f1d88

hppa architecture (HP PA RISC)

http://security.debian.org/pool/updates/main/s/squidguard/squidguard_1.2.0-8.4+lenny1_hppa.deb
Size/MD5 checksum: 141646 eb2dcf7aaf9336236a9c3d3275600bfb

i386 architecture (Intel ia32)

http://security.debian.org/pool/updates/main/s/squidguard/squidguard_1.2.0-8.4+lenny1_i386.deb
Size/MD5 checksum: 136670 50b26027612e70912d15cbae5123b5c8

ia64 architecture (Intel ia64)

http://security.debian.org/pool/updates/main/s/squidguard/squidguard_1.2.0-8.4+lenny1_ia64.deb
Size/MD5 checksum: 152770 3e3b4404993efb1c5167119d2edf1fa9

mips architecture (MIPS (Big Endian))

http://security.debian.org/pool/updates/main/s/squidguard/squidguard_1.2.0-8.4+lenny1_mips.deb
Size/MD5 checksum: 142754 3baf8a5cccba3817a5a0214362ea988c

mipsel architecture (MIPS (Little Endian))

http://security.debian.org/pool/updates/main/s/squidguard/squidguard_1.2.0-8.4+lenny1_mipsel.deb
Size/MD5 checksum: 141380 e2ed223a4d502ae0b9145cc6b5e680ed

powerpc architecture (PowerPC)

http://security.debian.org/pool/updates/main/s/squidguard/squidguard_1.2.0-8.4+lenny1_powerpc.deb
Size/MD5 checksum: 141494 e887ab8682e8ba9abf3c0cb09b9cb8ee

s390 architecture (IBM S/390)

http://security.debian.org/pool/updates/main/s/squidguard/squidguard_1.2.0-8.4+lenny1_s390.deb
Size/MD5 checksum: 140986 feb748e58cb638dd8a8212d7fd17ee93

sparc architecture (Sun SPARC/UltraSPARC)

http://security.debian.org/pool/updates/main/s/squidguard/squidguard_1.2.0-8.4+lenny1_sparc.deb
Size/MD5 checksum: 138004 3ff93f8b43a07864692086ceb2af077d

These files will probably be moved into the stable distribution on
its next update.

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For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>
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