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Pidgin MSN File Transfer Filename Processing Vulnerability
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Secunia Advisory:
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SA30881
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Release Date:
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2008-06-27
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Last Update:
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2008-08-29
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Popularity:
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5,995 views
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Critical:
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Moderately critical
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Impact:
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DoS
System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Pidgin 2.x
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| CVE reference: | CVE-2008-2955
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Description:
Juan Pablo Lopez Yacubian has discovered a vulnerability in Pidgin, which potentially can be exploited by malicious people to compromise a user's system.
The vulnerability is caused due to a use-after-free error within the "msn_slplink_process_msg()" function in libpurple/protocols/msnp9/slplink.c while processing MSN P2P file transfer requests. This can be exploited to dereference previously freed memory by tricking a user into accepting a file having a specially crafted filename.
Successful exploitation may allow execution of arbitrary code.
The vulnerability is confirmed in versions 2.4.1 and 2.4.2. Prior versions may also be affected.
Solution:
Update to version 2.4.3 or later.
Provided and/or discovered by:
Juan Pablo Lopez Yacubian
Changelog:
2008-07-09: Added CVE reference.
2008-08-29: Updated "Solution" and "Original Advisory" sections.
Original Advisory:
http://www.pidgin.im/news/security/?id=26
http://archives.neohapsis.com/archives/bugtraq/2008-06/0225.html
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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