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[ GLSA 201206-23 ] PyCrypto: Weak key generation
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PostPosted: Sun Jun 24, 2012 2:26 pm    Post subject: [ GLSA 201206-23 ] PyCrypto: Weak key generation Reply with quote

Gentoo Linux Security Advisory

Title: PyCrypto: Weak key generation (GLSA 201206-23)
Severity: normal
Exploitable: remote
Date: June 24, 2012
Bug(s): #417625
ID: 201206-23

Synopsis

PyCrypto generates weak ElGamal keys.

Background

PyCrypto is the Python Cryptography Toolkit.

Affected Packages

Package: dev-python/pycrypto
Vulnerable: < 2.6
Unaffected: >= 2.6
Architectures: All supported architectures


Description

An error in the generate() function in ElGamal.py causes PyCrypto to
generate weak ElGamal keys.


Impact

A remote attacker might be able to derive private keys.

Workaround

There is no known workaround at this time.

Resolution

All PyCrypto users should upgrade to the latest version:
Code:
# emerge --sync
      # emerge --ask --oneshot --verbose ">=dev-python/pycrypto-2.6"
   


References

CVE-2012-2417
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