DSA-1716-1 vnc4 -- integer overflow

Debian Security Advisory

DSA-1716-1 vnc4 -- integer overflow

Date Reported:

31 Jan 2009

Affected Packages:

vnc4

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 513531.
In Mitre's CVE dictionary: CVE-2008-4770.

More information:

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+etch4.

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.

Fixed in:

Debian GNU/Linux 4.0 (etch)

Source:

http://security.debian.org/pool/updates/main/v/vnc4/vnc4_4.1.1+X4.3.0-21+etch4.diff.gz

http://security.debian.org/pool/updates/main/v/vnc4/vnc4_4.1.1+X4.3.0.orig.tar.gz

http://security.debian.org/pool/updates/main/v/vnc4/vnc4_4.1.1+X4.3.0-21+etch4.dsc

Alpha:

http://security.debian.org/pool/updates/main/v/vnc4/vnc4-common_4.1.1+X4.3.0-21+etch4_alpha.deb

http://security.debian.org/pool/updates/main/v/vnc4/xvnc4viewer_4.1.1+X4.3.0-21+etch4_alpha.deb

http://security.debian.org/pool/updates/main/v/vnc4/vnc4server_4.1.1+X4.3.0-21+etch4_alpha.deb

AMD64:

http://security.debian.org/pool/updates/main/v/vnc4/vnc4server_4.1.1+X4.3.0-21+etch4_amd64.deb

http://security.debian.org/pool/updates/main/v/vnc4/xvnc4viewer_4.1.1+X4.3.0-21+etch4_amd64.deb

http://security.debian.org/pool/updates/main/v/vnc4/vnc4-common_4.1.1+X4.3.0-21+etch4_amd64.deb

HP Precision:

http://security.debian.org/pool/updates/main/v/vnc4/xvnc4viewer_4.1.1+X4.3.0-21+etch4_hppa.deb

http://security.debian.org/pool/updates/main/v/vnc4/vnc4server_4.1.1+X4.3.0-21+etch4_hppa.deb

http://security.debian.org/pool/updates/main/v/vnc4/vnc4-common_4.1.1+X4.3.0-21+etch4_hppa.deb

Intel IA-32:

http://security.debian.org/pool/updates/main/v/vnc4/vnc4server_4.1.1+X4.3.0-21+etch4_i386.deb

http://security.debian.org/pool/updates/main/v/vnc4/vnc4-common_4.1.1+X4.3.0-21+etch4_i386.deb

http://security.debian.org/pool/updates/main/v/vnc4/xvnc4viewer_4.1.1+X4.3.0-21+etch4_i386.deb

Intel IA-64:

http://security.debian.org/pool/updates/main/v/vnc4/vnc4-common_4.1.1+X4.3.0-21+etch4_ia64.deb

http://security.debian.org/pool/updates/main/v/vnc4/xvnc4viewer_4.1.1+X4.3.0-21+etch4_ia64.deb

http://security.debian.org/pool/updates/main/v/vnc4/vnc4server_4.1.1+X4.3.0-21+etch4_ia64.deb

Big-endian MIPS:

http://security.debian.org/pool/updates/main/v/vnc4/xvnc4viewer_4.1.1+X4.3.0-21+etch4_mips.deb

http://security.debian.org/pool/updates/main/v/vnc4/vnc4-common_4.1.1+X4.3.0-21+etch4_mips.deb

http://security.debian.org/pool/updates/main/v/vnc4/vnc4server_4.1.1+X4.3.0-21+etch4_mips.deb

Little-endian MIPS:

http://security.debian.org/pool/updates/main/v/vnc4/xvnc4viewer_4.1.1+X4.3.0-21+etch4_mipsel.deb

http://security.debian.org/pool/updates/main/v/vnc4/vnc4-common_4.1.1+X4.3.0-21+etch4_mipsel.deb

http://security.debian.org/pool/updates/main/v/vnc4/vnc4server_4.1.1+X4.3.0-21+etch4_mipsel.deb

PowerPC:

http://security.debian.org/pool/updates/main/v/vnc4/vnc4-common_4.1.1+X4.3.0-21+etch4_powerpc.deb

http://security.debian.org/pool/updates/main/v/vnc4/xvnc4viewer_4.1.1+X4.3.0-21+etch4_powerpc.deb

http://security.debian.org/pool/updates/main/v/vnc4/vnc4server_4.1.1+X4.3.0-21+etch4_powerpc.deb

IBM S/390:

http://security.debian.org/pool/updates/main/v/vnc4/xvnc4viewer_4.1.1+X4.3.0-21+etch4_s390.deb

http://security.debian.org/pool/updates/main/v/vnc4/vnc4-common_4.1.1+X4.3.0-21+etch4_s390.deb

http://security.debian.org/pool/updates/main/v/vnc4/vnc4server_4.1.1+X4.3.0-21+etch4_s390.deb

Sun Sparc:

http://security.debian.org/pool/updates/main/v/vnc4/xvnc4viewer_4.1.1+X4.3.0-21+etch4_sparc.deb

http://security.debian.org/pool/updates/main/v/vnc4/vnc4server_4.1.1+X4.3.0-21+etch4_sparc.deb

http://security.debian.org/pool/updates/main/v/vnc4/vnc4-common_4.1.1+X4.3.0-21+etch4_sparc.deb

MD5 checksums of the listed files are available in the original advisory.