[SECURITY] [DSA 996-1] New Crypt::CBC packages fix cryptographic weakness

Debian Security Advisory DSA 996-1 [email protected]
http://www.debian.org/security/ Martin Schulze
March 13th, 2006 http://www.debian.org/security/faq

Package : libcrypt-cbc-perl
Vulnerability : programming error
Problem type : remote
Debian-specific: no
CVE ID : CVE-2006-0898

Lincoln Stein discovered that the Perl Crypt::CBC module produces weak
ciphertext when used with block encryption algorithms with blocksize >
8 bytes.

The old stable distribution (woody) does not contain a Crypt::CBC module.

For the stable distribution (sarge) this problem has been fixed in
version 2.12-1sarge1.

For the unstable distribution (sid) this problem has been fixed in
version 2.17-1.

We recommend that you upgrade your libcrypt-cbc-perl package.

Upgrade Instructions

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 3.1 alias sarge

Source archives:

http://security.debian.org/pool/updates/main/libc/libcrypt-cbc-perl/libcrypt-cbc-perl_2.12-1sarge1.dsc
  Size/MD5 checksum:      631 a30dd4cde44e3a484b28ad8fc1b67e38
http://security.debian.org/pool/updates/main/libc/libcrypt-cbc-perl/libcrypt-cbc-perl_2.12-1sarge1.diff.gz
  Size/MD5 checksum:     4165 8bb65642884ea281f83026f2d98c6146
http://security.debian.org/pool/updates/main/libc/libcrypt-cbc-perl/libcrypt-cbc-perl_2.12.orig.tar.gz
  Size/MD5 checksum:    11036 27842b8ab627681b4a322610ea6184b5

Architecture independent components:

http://security.debian.org/pool/updates/main/libc/libcrypt-cbc-perl/libcrypt-cbc-perl_2.12-1sarge1_all.deb
  Size/MD5 checksum:    18162 d625af2e10974eaafb007d538a90ebad

These files will probably be moved into the stable distribution on
its next update.

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: [email protected]
Package info: `apt-cache show <pkg>' and http://packages.debian.org/&lt;pkg&gt;