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Centericq Empty Packet Handling Weakness and Buffer Overflows
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Secunia Advisory:
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SA17798
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Release Date:
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2005-11-30
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Last Update:
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2007-07-13
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Popularity:
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6,873 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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Unpatched
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| Software: | Centericq 4.x
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Secunia CVSS-2 Score:
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| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
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Description:
A weakness and some vulnerabilities have been reported in Centericq, which can be exploited by malicious people to cause a DoS (Denial of Service), and potentially to compromise a user's system.
1) The weakness is caused due to an error in the packet handling for peer to peer communications in the "DirectClient" class. This can be exploited to crash a vulnerable client by sending an empty packet to the listening port.
Successful exploitation requires that the setting "Enable peer-to-peer communications" has been enabled.
2) A boundary error exists in the ktools library used by Centericq. This can be exploited to caused a buffer overflow when the user edits specially crafted contact details retrieved from the messaging server.
For more information:
SA17768
3) Various boundary errors are reported in the IRC, Jabber, LiveJournal, and Yahoo hook, which potentially can be exploited to cause a buffer overflow and execute arbitrary code.
Successful exploitation may require that a user connects to malicious servers.
The weakness and vulnerabilities are reported in version 4.21.0. Other versions may also be affected.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
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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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