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Insecure Library Loading
Moderately critical

Pidgin Multiple Vulnerabilities

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Release Date:  2009-05-22    Last Update:  2009-06-09    Views:  5,259

Secunia Advisory SA35194

Where:

From remote

Impact:

DoS, System access

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

Description


Some vulnerabilities and weaknesses have been reported in Pidgin, which can be exploited by malicious people to cause a DoS (Denial of Service) or to potentially compromise a user's system.

1) A truncation error in the processing of MSN SLP messages can be exploited to cause a buffer overflow.

This is related to:
SA30971

2) A boundary error in the XMPP SOCKS5 "bytestream" server when initiating an outgoing file transfer can be exploited to cause a buffer overflow.

Successful exploitation of vulnerabilities #1 and #2 may allow execution of arbitrary code.

3) A boundary error exists in the implementation of the "PurpleCircBuffer" structure. This can be exploited to corrupt memory and cause a crash via specially crafted XMPP or Sametime packets.

4) A boundary error in the "decrypt_out()" function can be exploited to cause a stack-based buffer overflow with 8 bytes and crash the application via a specially crafted QQ packet.

The vulnerabilities are reported in versions prior to 2.5.6.


Solution:
Update to version 2.5.6.

Provided and/or discovered by:
1) Loc VALBON via ZDI

The vendor credits:
2) Veracode
3) Josef Andrysek
4) Ka-Hing Cheung

Original Advisory:
http://www.pidgin.im/news/security/?id=29
http://www.pidgin.im/news/security/?id=30
http://www.pidgin.im/news/security/?id=31
http://www.pidgin.im/news/security/?id=32

ZDI:
http://www.zerodayinitiative.com/advisories/ZDI-09-031/

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Pidgin Multiple Vulnerabilities

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