Debian Security Advisory

DSA-985-1 libtasn1-2 -- buffer overflows

Date Reported:
06 Mar 2006
Affected Packages:
libtasn1
Vulnerable:
Yes
Security database references:
In the Bugtraq database (at SecurityFocus): BugTraq ID 16568.
In Mitre's CVE dictionary: CVE-2006-0645.
More information:

Evgeny Legerov discovered several out-of-bounds memory accesses in the DER decoding component of the Tiny ASN.1 Library that allows attackers to crash the DER decoder and possibly execute arbitrary code.

The old stable distribution (woody) is not affected by these problems.

For the stable distribution (sarge) these problems have been fixed in version 2_0.2.10-3sarge1.

For the unstable distribution (sid) these problems will be fixed soon.

We recommend that you upgrade your libtasn1 packages.

Fixed in:

Debian GNU/Linux 3.1 (sarge)

Source:
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2_0.2.10-3sarge1.dsc
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2_0.2.10-3sarge1.diff.gz
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2_0.2.10.orig.tar.gz
Alpha:
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2_0.2.10-3sarge1_alpha.deb
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2-dev_0.2.10-3sarge1_alpha.deb
AMD64:
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2_0.2.10-3sarge1_amd64.deb
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2-dev_0.2.10-3sarge1_amd64.deb
ARM:
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2_0.2.10-3sarge1_arm.deb
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2-dev_0.2.10-3sarge1_arm.deb
Intel IA-32:
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2_0.2.10-3sarge1_i386.deb
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2-dev_0.2.10-3sarge1_i386.deb
Intel IA-64:
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2_0.2.10-3sarge1_ia64.deb
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2-dev_0.2.10-3sarge1_ia64.deb
HPPA:
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2_0.2.10-3sarge1_hppa.deb
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2-dev_0.2.10-3sarge1_hppa.deb
Motorola 680x0:
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2_0.2.10-3sarge1_m68k.deb
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2-dev_0.2.10-3sarge1_m68k.deb
Big endian MIPS:
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2_0.2.10-3sarge1_mips.deb
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2-dev_0.2.10-3sarge1_mips.deb
Little endian MIPS:
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2_0.2.10-3sarge1_mipsel.deb
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2-dev_0.2.10-3sarge1_mipsel.deb
PowerPC:
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2_0.2.10-3sarge1_powerpc.deb
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2-dev_0.2.10-3sarge1_powerpc.deb
IBM S/390:
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2_0.2.10-3sarge1_s390.deb
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2-dev_0.2.10-3sarge1_s390.deb
Sun Sparc:
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2_0.2.10-3sarge1_sparc.deb
http://security.debian.org/pool/updates/main/libt/libtasn1-2/libtasn1-2-dev_0.2.10-3sarge1_sparc.deb

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