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Re: [SECURITY] [DSA 1870-1] New pidgin packages fix arbitrary code execution



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Hi,
* Nico Golde <nion@debian.org> [2009-08-20 00:37]:
> --------------------------------------------------------------------------
> Debian Security Advisory DSA-1870-1                    security@debian.org
> http://www.debian.org/security/                                 Nico Golde
> August 19th, 2009                       http://www.debian.org/security/faq
> --------------------------------------------------------------------------
> 
> Package        : pidgin
> Vulnerability  : insufficient input validation
> Problem type   : remote
> Debian-specific: no
> CVE ID         : CVE-2009-2694
> 
> Federico Muttis discovered that libpurple, the shared library that adds
> support for various instant messaging networks to the pidgin IM client, is
> vulnerable to a heap-based buffer overflow.  This issue exists because of
> an incomplete fix for CVE-2008-2927 and CVE-2009-1376.  An attacker can
> exploit this by sending two consecutive SLP packets to a victim via MSN.
[...] 
Sorry, just got used to writing that, this is no buffer 
overflow. Actually the attacker can write to almost any 
arbitrary location.

Cheers
Nico
- -- 
Nico Golde - http://www.ngolde.de - nion@jabber.ccc.de - GPG: 0xA0A0AAAA
For security reasons, all text in this mail is double-rot13 encrypted.
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