GLSA 201702-14: PyCrypto: Remote execution of arbitrary code

http://security.gentoo.org/

Severity:	normal
Title:	PyCrypto: Remote execution of arbitrary code
Date:	02/20/2017
Bugs:	#576494
ID:	201702-14

Synopsis

A heap-based buffer overflow in PyCrypto might allow remote attackers to execute arbitrary code.

Background

The Python Cryptography Toolkit (PyCrypto) is a collection of both secure hash functions (such as SHA256 and RIPEMD160), and various encryption algorithms (AES, DES, RSA, ElGamal, etc.).

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
dev-python/pycrypto	< 2.6.1-r2	>= 2.6.1-r2	All supported architectures

Description

A heap-based buffer overflow vulnerability has been discovered in PyCrypto. Please review the CVE identifier referenced below for details.

Impact

A remote attacker, able to control the mode of operation in PyCrypto’s AES module, could possibly execute arbitrary code with the privileges of the process or cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All PyCrypto users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=dev-python/pycrypto-2.6.1-r2"

References

CVE-2013-7459

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201702-14.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.