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>> Network Audio System Multiple Memory Corruption and Denial of Service Vulnerabilities
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Multiple vulnerabilities have been identified in Network Audio System, which could be exploited by attackers to execute arbitrary commands or cause a denial of service.
The first issue is due to a buffer overflow error in the "accept_att_local()" [server/os/connection.c] function when processing data received via the USL socket (disabled by default), which could be exploited by attackers to execute arbitrary commands.
The second vulnerability is due to an error in the "AddResource()" [server/dia/resource.c] function when processing a non-existent client ID, which could be exploited by attackers to crash an affected application.
The third issue is due to an integer overflow error in the "ProcAuWriteElement()" [server/dia/audispatch.c] function when processing a malformed "max_samples" value, which could be exploited by attackers to crash a vulnerable application.
The fourth vulnerability is due to a memory corruption error in the "ProcAuSetElements()" [server/dia/audispatch.c] function when processing a malformed "num_action" value, which could be exploited by attackers to crash an affected application.
The fifth issue is due to an error in the "compileInputs()" [server/dia/auutil.c] function when processing a malformed "inputNum" value, which could be exploited by attackers to crash an affected application.
The sixth vulnerability is due to a null pointer dereference error in the "ReadRequestFromClient()" [server/os/io.c] function when handling simultaneous connections, which could be exploited by attackers to cause a denial of service.
Affected Products
Network Audio System version 1.8a and prior
Solution
A fix is available via SVN :
svn://radscan.com/nas
References
http://www.vupen.com/english/advisories/2007/0997
http://aluigi.altervista.org/adv/nasbugs-adv.txt
Credits
Vulnerabilities reported by Luigi Auriemma
ChangeLog
2007-03-19 : Initial release
Vulnerability Management
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