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BNC IRC proxy "getnickuserhost()" Buffer Overflow Vulnerability
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Secunia Advisory:
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SA13149
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Release Date:
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2004-11-10
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Last Update:
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2004-11-18
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Popularity:
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9,112 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: | BNC IRC proxy 2.x
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| CVE reference: | CVE-2004-1052
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Description:
Leon Juranic has reported a vulnerability in BNC IRC proxy, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise a vulnerable system.
The vulnerability is caused due to some boundary errors in the "getnickuserhost()" function in "cmds.c" when processing IRC server responses. This can be exploited by a malicious server to cause a buffer overflow.
Successful exploitation crashes the process but may potentially also allow execution of arbitrary code.
The vulnerability has been reported in version 2.8.9. Other versions may also be affected.
Solution:
Update to version 2.9.0:
http://www.gotbnc.com/files/bnc2.9.0.tar.gz
Provided and/or discovered by:
Leon Juranic
Changelog:
2004-11-18: Added CVE reference.
Original Advisory:
http://security.lss.hr/en/index.php?page=details&ID=LSS-2004-11-03
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About this Secunia Advisory
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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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