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PuTTY "SSH2_MSG_DEBUG" Packet Handling Buffer Overflow Vulnerability
Secunia Advisory: SA12987
Release Date: 2004-10-27
Last Update: 2004-12-07
Popularity: 16,276 views

Critical:
Moderately critical
Impact: System access
Where: From remote
Solution Status: Vendor Patch

Software:PuTTY 0.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
A vulnerability has been reported in PuTTY, which can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error in the "ssh2_rdpkt()" function when processing of SSH2_MSG_DEBUG packets. This can be exploited to cause a buffer overflow by sending a malicious packet containing a specially crafted value in the "stringlen" parameter.

Successful exploitation allows execution of arbitrary code, but requires that a user is tricked into connecting to a malicious SSH2 server.

The vulnerability has been reported in version 0.55. Prior versions may also be affected.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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