Bug 1348865 – CVE-2016-2367 pidgin: MXIT Avatar Length Memory Disclosure Vulnerability

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Bug 1348865 - (CVE-2016-2367) CVE-2016-2367 pidgin: MXIT Avatar Length Memory Disclosure Vulnerability

Summary:	CVE-2016-2367 pidgin: MXIT Avatar Length Memory Disclosure Vulnerability

Status:	NEW

Aliases:	CVE-2016-2367

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
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Assigned To:	Red Hat Product Security
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Whiteboard:	impact=moderate,public=20160621,repor...
Keywords:	Security

Depends On:	1350338 1403136
Blocks:	1348890
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Reported:	2016-06-22 04:49 EDT by Andrej Nemec
Modified:	2018-09-27 07:32 EDT (History)
CC List:	7 users (show)

See Also:
Fixed In Version:	pidgin 2.11.0
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Description Andrej Nemec 2016-06-22 04:49:48 EDT

An information leak exists in the handling of the MXIT protocol in Pidgin. Specially crafted MXIT data sent via the server could potentially result in an out of bounds read. A malicious user, server, or man-in-the-middle can send an invalid size for an avatar which will trigger an out-of-bounds read vulnerability. This could result in a denial of service or copy data from memory to the file, resulting in an information leak if the avatar is sent to another user.

External references:

http://www.talosintel.com/reports/TALOS-2016-0135/
http://www.pidgin.im/news/security/?id=100

Upstream fixes:

https://bitbucket.org/pidgin/main/commits/5e3601f8bde4
https://bitbucket.org/pidgin/main/commits/1c5197a66760
https://bitbucket.org/pidgin/main/commits/648f667a679c

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