Debian Security Advisory

DSA-595-1 bnc -- buffer overflow

Date Reported:
24 Nov 2004
Affected Packages:
bnc
Vulnerable:
Yes
Security database references:
In Mitre's CVE dictionary: CVE-2004-1052.
More information:

Leon Juranic discovered that BNC, an IRC session bouncing proxy, does not always protect buffers from being overwritten. This could exploited by a malicious IRC server to overflow a buffer of limited size and execute arbitrary code on the client host.

For the stable distribution (woody) this problem has been fixed in version 2.6.4-3.3.

This package does not exist in the testing or unstable distributions.

We recommend that you upgrade your bnc package.

Fixed in:

Debian GNU/Linux 3.0 (woody)

Source:
http://security.debian.org/pool/updates/main/b/bnc/bnc_2.6.4-3.3.dsc
http://security.debian.org/pool/updates/main/b/bnc/bnc_2.6.4-3.3.diff.gz
http://security.debian.org/pool/updates/main/b/bnc/bnc_2.6.4.orig.tar.gz
Alpha:
http://security.debian.org/pool/updates/main/b/bnc/bnc_2.6.4-3.3_alpha.deb
ARM:
http://security.debian.org/pool/updates/main/b/bnc/bnc_2.6.4-3.3_arm.deb
Intel IA-32:
http://security.debian.org/pool/updates/main/b/bnc/bnc_2.6.4-3.3_i386.deb
Intel IA-64:
http://security.debian.org/pool/updates/main/b/bnc/bnc_2.6.4-3.3_ia64.deb
HPPA:
http://security.debian.org/pool/updates/main/b/bnc/bnc_2.6.4-3.3_hppa.deb
Motorola 680x0:
http://security.debian.org/pool/updates/main/b/bnc/bnc_2.6.4-3.3_m68k.deb
Big endian MIPS:
http://security.debian.org/pool/updates/main/b/bnc/bnc_2.6.4-3.3_mips.deb
Little endian MIPS:
http://security.debian.org/pool/updates/main/b/bnc/bnc_2.6.4-3.3_mipsel.deb
PowerPC:
http://security.debian.org/pool/updates/main/b/bnc/bnc_2.6.4-3.3_powerpc.deb
IBM S/390:
http://security.debian.org/pool/updates/main/b/bnc/bnc_2.6.4-3.3_s390.deb
Sun Sparc:
http://security.debian.org/pool/updates/main/b/bnc/bnc_2.6.4-3.3_sparc.deb

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