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Bug 110430 - net-im/skype: Heap overflow in networking routine (CVE-2005-3267)
Summary: net-im/skype: Heap overflow in networking routine (CVE-2005-3267)
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: High trivial (vote)
Assignee: Gentoo Security
URL: http://www.skype.com/security/skype-s...
Whiteboard: ~3 [noglsa]
Keywords:
Depends on:
Blocks:
 
Reported: 2005-10-25 05:13 UTC by Carsten Lohrke (RETIRED)
Modified: 2005-12-27 01:01 UTC (History)
2 users (show)

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


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Description Carsten Lohrke (RETIRED) gentoo-dev 2005-10-25 05:13:29 UTC
A security bug in the Skype user client, for all platforms, has
been identified and fixed.

Skype can be remotely forced to crash due to an error in bounds
checking in a specific networking routine.
Discussion

An attacker who sends a stream of specifically-crafted network
traffic to a Skype client network can cause the client to overwrite
part of the heap, including the heap integrity control data. Since
the attacker cannot control the address where the data is written,
the most likely effect will be that the Skype will abort execution
due to an internal error, although other unpredictable behavior is
possible.

Such a crash will lead to a loss of availability of the Skype
application until it is restarted by the user. Skype has been able
to induce Skype clients to crash, but has not been able to cause the
client to execute specific instructions.

This is tracked by Mitre CVE ID CVE-2005-3267.

http://www.skype.com/security/skype-sb-2005-03.html
Comment 1 Stefan Cornelius (RETIRED) gentoo-dev 2005-10-25 05:20:34 UTC
net-im, please provide fixed ebuilds
Comment 2 Gustavo Felisberto (RETIRED) gentoo-dev 2005-10-25 08:00:08 UTC
fixed version in portage now, older versions removed.
Comment 3 Stefan Cornelius (RETIRED) gentoo-dev 2005-10-25 08:24:35 UTC
never stable -> no GLSA. we are done, thanks everybody.
Comment 4 Petteri Räty (RETIRED) gentoo-dev 2005-12-26 13:55:28 UTC
(In reply to comment #3)
> never stable -> no GLSA. we are done, thanks everybody.
> 

http://www.gentoo.org/cgi-bin/viewcvs.cgi/net-im/skype/skype-1.0.0.1.ebuild?view=markup
At least 1.0.0.1 has been stable. The ChangeLog does not give any clues why this has been dropped to only ~arch.
Comment 5 Thierry Carrez (RETIRED) gentoo-dev 2005-12-27 01:01:07 UTC
Yes, you're right, it's been stable for about 3-4 months at version 1.0.0.1...

net-im, do you think one of the recent fixed version would make a good candidate for stable ? In which case we could issue a GLSA when it's done...