Security Information / 2012 / Security Information -- DSA-2502-1 python-crypto

Debian Security Advisory

DSA-2502-1 python-crypto -- programming error

Date Reported:

24 Jun 2012

Affected Packages:

python-crypto

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CVE-2012-2417.

More information:

It was discovered that that the ElGamal code in PythonCrypto, a collection of cryptographic algorithms and protocols for Python used insecure insufficient prime numbers in key generation, which lead to a weakened signature or public key space, allowing easier brute force attacks on such keys.

For the stable distribution (squeeze), this problem has been fixed in version 2.1.0-2+squeeze1.

For the unstable distribution (sid), this problem has been fixed in version 2.6-1.

We recommend that you upgrade your python-crypto packages. After installing this update, previously generated keys need to be regenerated.