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Debian Security Advisory DSA 2781-1 (python-crypto - PRNG not correctly reseeded in some situations)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
A cryptographic vulnerability was discovered in the pseudo random number generator in python-crypto. In some situations, a race condition could prevent the reseeding of the generator when multiple processes are forked from the same parent. This would lead it to generate identical output on all processes, which might leak sensitive values like cryptographic keys.
Affected Software
Affected Software
python-crypto on Debian Linux
Detection Method
Detection Method
This check tests the installed software version using the apt package manager.
Solution
Solution
For the oldstable distribution (squeeze), this problem has been fixed in version 2.1.0-2+squeeze2. For the stable distribution (wheezy), this problem has been fixed in version 2.6-4+deb7u3. For the testing distribution (jessie), this problem has been fixed in version 2.6.1-2. For the unstable distribution (sid), this problem has been fixed in version 2.6.1-1. We recommend that you upgrade your python-crypto packages.