DSA 1716-1: New vnc4 packages fix remote code execution

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Debian Security Advisory DSA-1716-1 security@debian.org
http://www.debian.org/security/ Steffen Joeris
January 31, 2009 http://www.debian.org/security/faq
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Package : vnc4
Vulnerability : integer overflow
Problem type : remote
Debian-specific: no
CVE ID : CVE-2008-4770
Debian Bug : 513531

It was discovered that xvnc4viewer, a virtual network computing client
software for X, is prone to an integer overflow via a malicious
encoding value that could lead to arbitrary code execution.

For the stable distribution (etch) this problem has been fixed in
version 4.1.1+X4.3.0-21+etch1.

For the unstable (sid) distribution this problem has been fixed in
version 4.1.1+X4.3.0-31.

For the testing (lenny) distribution this problem will be fixed soon.

We recommend that you upgrade your vnc4 packages.

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 4.0 alias etch
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Source archives:

http://security.debian.org/pool/updates/main/v/vnc4/vnc4_4.1.1+X4.3.0-21+etch1.diff.gz
Size/MD5 checksum: 50904 55c92400d7949023c3488dcec680d613
http://security.debian.org/pool/updates/main/v/vnc4/vnc4_4.1.1+X4.3.0.orig.tar.gz
Size/MD5 checksum: 31536534 b28c43385fe574d612ddbd0b645082f7
http://security.debian.org/pool/updates/main/v/vnc4/vnc4_4.1.1+X4.3.0-21+etch1.dsc
Size/MD5 checksum: 696 0d0f0e7f58c6440481b8bfa83af8cd63

alpha architecture (DEC Alpha)

http://security.debian.org/pool/updates/main/v/vnc4/vnc4-common_4.1.1+X4.3.0-21+etch1_alpha.deb
Size/MD5 checksum: 19868 56d083c639e24961fcbbf98cec86dd11
http://security.debian.org/pool/updates/main/v/vnc4/xvnc4viewer_4.1.1+X4.3.0-21+etch1_alpha.deb
Size/MD5 checksum: 172424 ec5afb4bf93d6988859e0dca63b922a4
http://security.debian.org/pool/updates/main/v/vnc4/vnc4server_4.1.1+X4.3.0-21+etch1_alpha.deb
Size/MD5 checksum: 2682410 e2ad2547dda085010c318900786ee935

amd64 architecture (AMD x86_64 (AMD64))

http://security.debian.org/pool/updates/main/v/vnc4/vnc4server_4.1.1+X4.3.0-21+etch1_amd64.deb
Size/MD5 checksum: 2169248 27b31d7391acb4b7d4e98a97a341bcf3
http://security.debian.org/pool/updates/main/v/vnc4/xvnc4viewer_4.1.1+X4.3.0-21+etch1_amd64.deb
Size/MD5 checksum: 144462 097687a2626960fcda86fa8df3831151
http://security.debian.org/pool/updates/main/v/vnc4/vnc4-common_4.1.1+X4.3.0-21+etch1_amd64.deb
Size/MD5 checksum: 18778 68843484c257b04314e141a1bc370443

hppa architecture (HP PA RISC)

http://security.debian.org/pool/updates/main/v/vnc4/xvnc4viewer_4.1.1+X4.3.0-21+etch1_hppa.deb
Size/MD5 checksum: 181264 ca3758fa85fb049fdd8f965d3e67ed40
http://security.debian.org/pool/updates/main/v/vnc4/vnc4server_4.1.1+X4.3.0-21+etch1_hppa.deb
Size/MD5 checksum: 2294922 00482f651a2008cd66f4588ac403cba2
http://security.debian.org/pool/updates/main/v/vnc4/vnc4-common_4.1.1+X4.3.0-21+etch1_hppa.deb
Size/MD5 checksum: 19490 07ac277452d42f3f5ac8144700109c06

i386 architecture (Intel ia32)

http://security.debian.org/pool/updates/main/v/vnc4/vnc4server_4.1.1+X4.3.0-21+etch1_i386.deb
Size/MD5 checksum: 2015342 a1e67da97e85e0ca290e3644b551c686
http://security.debian.org/pool/updates/main/v/vnc4/vnc4-common_4.1.1+X4.3.0-21+etch1_i386.deb
Size/MD5 checksum: 18640 27cf156a68540519f9efd4b81fd51dff
http://security.debian.org/pool/updates/main/v/vnc4/xvnc4viewer_4.1.1+X4.3.0-21+etch1_i386.deb
Size/MD5 checksum: 147628 9cedf57dd52455c76332f585f6c52dc8

ia64 architecture (Intel ia64)

http://security.debian.org/pool/updates/main/v/vnc4/vnc4-common_4.1.1+X4.3.0-21+etch1_ia64.deb
Size/MD5 checksum: 20850 1bc4cf4b52eae3f4df103ef36b13f156
http://security.debian.org/pool/updates/main/v/vnc4/xvnc4viewer_4.1.1+X4.3.0-21+etch1_ia64.deb
Size/MD5 checksum: 210896 9f611bbc3397c02056f51b7f3dc7a190
http://security.debian.org/pool/updates/main/v/vnc4/vnc4server_4.1.1+X4.3.0-21+etch1_ia64.deb
Size/MD5 checksum: 3436446 a80497194bfa083efc7abb605d63e8e5

mips architecture (MIPS (Big Endian))

http://security.debian.org/pool/updates/main/v/vnc4/xvnc4viewer_4.1.1+X4.3.0-21+etch1_mips.deb
Size/MD5 checksum: 167956 a675e51fa9e97a06161aa1a39a0a40e0
http://security.debian.org/pool/updates/main/v/vnc4/vnc4-common_4.1.1+X4.3.0-21+etch1_mips.deb
Size/MD5 checksum: 19334 ba9c0e77f3127023fb804771bbc02be1
http://security.debian.org/pool/updates/main/v/vnc4/vnc4server_4.1.1+X4.3.0-21+etch1_mips.deb
Size/MD5 checksum: 2219206 26797854e72b6e37ae36b3ab25fe9f81

mipsel architecture (MIPS (Little Endian))

http://security.debian.org/pool/updates/main/v/vnc4/xvnc4viewer_4.1.1+X4.3.0-21+etch1_mipsel.deb
Size/MD5 checksum: 166658 f65eb37aac9e5999bfe8357cc5fa6d1a
http://security.debian.org/pool/updates/main/v/vnc4/vnc4-common_4.1.1+X4.3.0-21+etch1_mipsel.deb
Size/MD5 checksum: 19364 8756098357f1d940067ba336f5fd2412
http://security.debian.org/pool/updates/main/v/vnc4/vnc4server_4.1.1+X4.3.0-21+etch1_mipsel.deb
Size/MD5 checksum: 2216976 511790cec54a6fbb4d82b7264faa828c

powerpc architecture (PowerPC)

http://security.debian.org/pool/updates/main/v/vnc4/vnc4-common_4.1.1+X4.3.0-21+etch1_powerpc.deb
Size/MD5 checksum: 18964 dc9aaf61e3ed3af75ec6721a34837e91
http://security.debian.org/pool/updates/main/v/vnc4/xvnc4viewer_4.1.1+X4.3.0-21+etch1_powerpc.deb
Size/MD5 checksum: 150726 72aec061f31ca36cde5de15155566267
http://security.debian.org/pool/updates/main/v/vnc4/vnc4server_4.1.1+X4.3.0-21+etch1_powerpc.deb
Size/MD5 checksum: 2175212 dd3910238f15e0b3e5217156fb7a82b1

s390 architecture (IBM S/390)

http://security.debian.org/pool/updates/main/v/vnc4/xvnc4viewer_4.1.1+X4.3.0-21+etch1_s390.deb
Size/MD5 checksum: 146930 3944bd5e31b674d5f61df09bf559da7a
http://security.debian.org/pool/updates/main/v/vnc4/vnc4-common_4.1.1+X4.3.0-21+etch1_s390.deb
Size/MD5 checksum: 18962 9be75dac3eb47ad7fcd3cdf2f791ef29
http://security.debian.org/pool/updates/main/v/vnc4/vnc4server_4.1.1+X4.3.0-21+etch1_s390.deb
Size/MD5 checksum: 2037162 90f5428057526f8ddd3597b68640278a

sparc architecture (Sun SPARC/UltraSPARC)

http://security.debian.org/pool/updates/main/v/vnc4/xvnc4viewer_4.1.1+X4.3.0-21+etch1_sparc.deb
Size/MD5 checksum: 140638 8c079b90ee4f3fe80b2ce7eac796b2d0
http://security.debian.org/pool/updates/main/v/vnc4/vnc4server_4.1.1+X4.3.0-21+etch1_sparc.deb
Size/MD5 checksum: 1976152 695f3eca91cd7f4a8b15546fb9f53e97
http://security.debian.org/pool/updates/main/v/vnc4/vnc4-common_4.1.1+X4.3.0-21+etch1_sparc.deb
Size/MD5 checksum: 18334 b5aa41215f8d4d90849bd7e17e6f3720


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 lt;pkggt;' and http://packages.debian.org/lt;pkggt;
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