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[ GLSA 200509-09 ] Py2Play: Remote execution of arbitrary Python code
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GLSA
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Joined: 12 May 2004
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PostPosted: Sat Sep 17, 2005 12:23 pm    Post subject: [ GLSA 200509-09 ] Py2Play: Remote execution of arbitrary Py Reply with quote

Gentoo Linux Security Advisory

Title: Py2Play: Remote execution of arbitrary Python code (GLSA 200509-09)
Severity: high
Exploitable: remote
Date: September 17, 2005
Updated: September 05, 2006
Bug(s): #103524
ID: 200509-09

Synopsis

A design error in Py2Play allows attackers to execute arbitrary code.

Background

Py2Play is a peer-to-peer network game engine written in Python. Pickling is a Python feature allowing to serialize Python objects into string representations (called pickles) that can be sent over the network.

Affected Packages

Package: dev-python/py2play
Vulnerable: <= 0.1.7
Unaffected: >= 0.1.8
Architectures: All supported architectures


Description

Arc Riley discovered that Py2Play uses Python pickles to send objects over a peer-to-peer game network, and that clients accept without restriction the objects and code sent by peers.

Impact

A remote attacker participating in a Py2Play-powered game can send malicious Python pickles, resulting in the execution of arbitrary Python code on the targeted game client.

Workaround

There is no known workaround at this time.

Resolution

All py2play users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-python/py2play-0.1.8"


References

CAN-2005-2875


Last edited by GLSA on Wed Sep 06, 2006 4:17 am; edited 2 times in total
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