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Gaim-Encryption Malformed Encrypted Message Denial of Service
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Secunia Advisory:
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SA17739
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Release Date:
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2005-11-25
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Last Update:
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2006-02-03
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Critical:
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Not critical
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Impact:
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DoS
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Where:
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From remote
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Solution Status:
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Unpatched
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| Software: | Gaim-Encryption 2.x
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| | CVE reference: | CVE-2005-4693 (Secunia mirror)
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This advisory is currently marked as unpatched!
- Companies can be alerted when a patch is released! |
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Description:
Joerg Kurlbaum has discovered a weakness in Gaim-Encryption, which can be exploited by malicious people to cause a DoS (Denial of Service).
The weakness is caused due to an error in the "GE_received_key()" function of "keys.c" when using the "sscanf()" function to determine the start position of the key in an encrypted message. This can be exploited to crash Gaim via a malformed encrypted message if the Gaim-Encryption plugin is enabled.
The weakness has been confirmed in version 2.38 on Gaim v1.3.1-0.fc4. Other versions may also be affected.
Solution:
Disable the Gaim-Encryption plugin when not sending encrypted messages.
Provided and/or discovered by:
Joerg Kurlbaum
Changelog:
2006-02-03: Added CVE reference.
Original Advisory:
Debian:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=337127
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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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