USN-729-1: Python Crypto vulnerability

Releases

• Ubuntu 8.10
• Ubuntu 8.04
• Ubuntu 7.10
• Ubuntu 6.06

Packages

• python-crypto -

Details

Mike Wiacek discovered that the ARC2 implementation in Python Crypto
did not correctly check the key length. If a user or automated system
were tricked into processing a malicious ARC2 stream, a remote attacker
could execute arbitrary code or crash the application using Python Crypto,
leading to a denial of service.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 8.10

• python-crypto - 2.0.1+dfsg1-2.3ubuntu0.1

Ubuntu 8.04

• python-crypto - 2.0.1+dfsg1-2.1ubuntu1.1

Ubuntu 7.10

• python-crypto - 2.0.1+dfsg1-2ubuntu1.1

Ubuntu 6.06

• python2.4-crypto - 2.0.1+dfsg1-1ubuntu1.1

In general, a standard system upgrade is sufficient to effect the
necessary changes.

References

• CVE-2009-0544