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Insecure Library Loading
Not critical

PyCrypto ElGamal Key Generation Weakness

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Release Date:  2012-05-25    Views:  1,481

Secunia Advisory SA49263

Where:

From remote

Impact:

Brute force

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

Description


A weakness has been reported in PyCrypto, which can be exploited by malicious people to conduct brute force attacks.

The weakness is caused due to an error when generating keys using the ElGamal scheme which may result in a reduced key space and can be exploited to derive the private key.

The weakness is reported in versions 2.5 and prior.


Solution:
Update to version 2.6.

Provided and/or discovered by:
The vendor credits Legrandin.

Original Advisory:
https://github.com/dlitz/pycrypto/blob/373ea760f21701b162e8c4912a66928ee30d401a/ChangeLog

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: PyCrypto ElGamal Key Generation Weakness

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