DSA-1174-1 openssl096 -- cryptographic weakness

Debian Security Advisory

DSA-1174-1 openssl096 -- cryptographic weakness

Date Reported:

11 Sep 2006

Affected Packages:

openssl096

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 386247.
In the Bugtraq database (at SecurityFocus): BugTraq ID 19849.
In Mitre's CVE dictionary: CVE-2006-4339.

More information:

Daniel Bleichenbacher discovered a flaw in the OpenSSL cryptographic package that could allow an attacker to generate a forged signature that OpenSSL will accept as valid.

For the stable distribution (sarge) this problem has been fixed in version 0.9.6m-1sarge2.

This package exists only for compatibility with older software, and is not present in the unstable or testing branches of Debian.

We recommend that you upgrade your openssl packages. Note that services linking against the openssl shared libraries will need to be restarted. Common examples of such services include most Mail Transport Agents, SSH servers, and web servers.

Fixed in:

Debian GNU/Linux 3.1 (sarge)

Source:

http://security.debian.org/pool/updates/main/o/openssl096/openssl096_0.9.6m-1sarge2.dsc

http://security.debian.org/pool/updates/main/o/openssl096/openssl096_0.9.6m-1sarge2.diff.gz

http://security.debian.org/pool/updates/main/o/openssl096/openssl096_0.9.6m.orig.tar.gz

Alpha:

http://security.debian.org/pool/updates/main/o/openssl096/libssl0.9.6_0.9.6m-1sarge2_alpha.deb

AMD64:

http://security.debian.org/pool/updates/main/o/openssl096/libssl0.9.6_0.9.6m-1sarge2_amd64.deb

ARM:

http://security.debian.org/pool/updates/main/o/openssl096/libssl0.9.6_0.9.6m-1sarge2_arm.deb

HPPA:

http://security.debian.org/pool/updates/main/o/openssl096/libssl0.9.6_0.9.6m-1sarge2_hppa.deb

Intel IA-32:

http://security.debian.org/pool/updates/main/o/openssl096/libssl0.9.6_0.9.6m-1sarge2_i386.deb

Intel IA-64:

http://security.debian.org/pool/updates/main/o/openssl096/libssl0.9.6_0.9.6m-1sarge2_ia64.deb

Motorola 680x0:

http://security.debian.org/pool/updates/main/o/openssl096/libssl0.9.6_0.9.6m-1sarge2_m68k.deb

Big endian MIPS:

http://security.debian.org/pool/updates/main/o/openssl096/libssl0.9.6_0.9.6m-1sarge2_mips.deb

Little endian MIPS:

http://security.debian.org/pool/updates/main/o/openssl096/libssl0.9.6_0.9.6m-1sarge2_mipsel.deb

PowerPC:

http://security.debian.org/pool/updates/main/o/openssl096/libssl0.9.6_0.9.6m-1sarge2_powerpc.deb

IBM S/390:

http://security.debian.org/pool/updates/main/o/openssl096/libssl0.9.6_0.9.6m-1sarge2_s390.deb

Sun Sparc:

http://security.debian.org/pool/updates/main/o/openssl096/libssl0.9.6_0.9.6m-1sarge2_sparc.deb

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