Debian Security Advisory

DSA-494-1 ident2 -- buffer overflow

Date Reported:
21 Apr 2004
Affected Packages:
ident2
Vulnerable:
Yes
Security database references:
In the Bugtraq database (at SecurityFocus): BugTraq ID 10192.
In Mitre's CVE dictionary: CVE-2004-0408.
More information:

Jack <jack@rapturesecurity.org> discovered a buffer overflow in ident2, an implementation of the ident protocol (RFC1413), where a buffer in the child_service function was slightly too small to hold all of the data which could be written into it. This vulnerability could be exploited by a remote attacker to execute arbitrary code with the privileges of the ident2 daemon (by default, the "identd" user).

For the current stable distribution (woody) this problem has been fixed in version 1.03-3woody1.

For the unstable distribution (sid), this problem will be fixed soon.

We recommend that you update your ident2 package.

Fixed in:

Debian GNU/Linux 3.0 (woody)

Source:
http://security.debian.org/pool/updates/main/i/ident2/ident2_1.03-3woody1.dsc
http://security.debian.org/pool/updates/main/i/ident2/ident2_1.03-3woody1.diff.gz
http://security.debian.org/pool/updates/main/i/ident2/ident2_1.03.orig.tar.gz
Alpha:
http://security.debian.org/pool/updates/main/i/ident2/ident2_1.03-3woody1_alpha.deb
ARM:
http://security.debian.org/pool/updates/main/i/ident2/ident2_1.03-3woody1_arm.deb
Intel IA-32:
http://security.debian.org/pool/updates/main/i/ident2/ident2_1.03-3woody1_i386.deb
Intel IA-64:
http://security.debian.org/pool/updates/main/i/ident2/ident2_1.03-3woody1_ia64.deb
HPPA:
http://security.debian.org/pool/updates/main/i/ident2/ident2_1.03-3woody1_hppa.deb
Motorola 680x0:
http://security.debian.org/pool/updates/main/i/ident2/ident2_1.03-3woody1_m68k.deb
Big endian MIPS:
http://security.debian.org/pool/updates/main/i/ident2/ident2_1.03-3woody1_mips.deb
Little endian MIPS:
http://security.debian.org/pool/updates/main/i/ident2/ident2_1.03-3woody1_mipsel.deb
PowerPC:
http://security.debian.org/pool/updates/main/i/ident2/ident2_1.03-3woody1_powerpc.deb
IBM S/390:
http://security.debian.org/pool/updates/main/i/ident2/ident2_1.03-3woody1_s390.deb
Sun Sparc:
http://security.debian.org/pool/updates/main/i/ident2/ident2_1.03-3woody1_sparc.deb

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