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Bug 131484 - net-p2p/phex: DoS while initiate several simultaneous chats then log off
Summary: net-p2p/phex: DoS while initiate several simultaneous chats then log off
Status: RESOLVED INVALID
Alias: None
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: High minor (vote)
Assignee: Gentoo Security
URL: http://secunia.com/advisories/19824/
Whiteboard: [B|C]3? [ebuild]
Keywords:
Depends on:
Blocks:
 
Reported: 2006-04-27 10:42 UTC by Raphael Marichez (Falco) (RETIRED)
Modified: 2006-04-28 10:54 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


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Description Raphael Marichez (Falco) (RETIRED) gentoo-dev 2006-04-27 10:42:39 UTC
A very very minor bug...

Description:
A weakness has been reported in Phex, which can be exploited by malicious people to cause a DoS (Denial of Service).

The weakness is caused due to an error in restricting the number of chat requests that a user can initiate to another. This can be exploited by malicious users to cause Phex to consume large amount of memory resources by initiating a large number of chat requests to a victim and then log off.

Successful exploitation causes Phex to become unresponsive.

The weakness has been reported in versions prior to 2.8.6.

Solution:
Update to version 2.8.6.
http://sourceforge.net/project/showfiles.php?group_id=27021

Provided and/or discovered by:
The vendor credits Ian Booth.

Original Advisory:
http://sourceforge.net/project/shownotes.php?release_id=412751
Comment 1 Raphael Marichez (Falco) (RETIRED) gentoo-dev 2006-04-27 11:30:43 UTC
Futhermore, it's way possible that our x86 stable version is not affected. (2.0.0.76)

2.0.0.76 doesn't seem to have such a protection agains large number of chats :

( http://svn.sourceforge.net/viewcvs.cgi/phex/phex/tags/release-2_0_0_76/phex/src/phex/ )
Comment 2 Thierry Carrez (RETIRED) gentoo-dev 2006-04-28 10:54:28 UTC
That's a little too minor and I agree that our stable version is probably unaffected so closing as INVALID

Feel free to reopen if you disagree.