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TITLE:
QEMU VNC "protocol_client_msg()" Denial of Service

SECUNIA ADVISORY ID:
SA33293

VERIFY ADVISORY:
http://secunia.com/advisories/33293/

CRITICAL:
Not critical

IMPACT:
DoS

WHERE:
>From local network

SOFTWARE:
QEMU 0.x
http://secunia.com/advisories/product/14104/

DESCRIPTION:
A security issue has been reported in QEMU, which can be exploited by
malicious users to cause a DoS (Denial of Service).

The security issue is caused due to an infinite loop within the
"protocol_client_msg()" function in vnc.c when processing certain
"SetEncodings" messages. This can be exploited to cause a high CPU
load by sending specially crafted messages to a vulnerable host.

The security issue is reported in version 0.9.1 and prior. Other
versions may also be affected.

SOLUTION:
Fixed in the SVN repository.

PROVIDED AND/OR DISCOVERED BY:
Alfredo Ortega, Core Security Technologies.

ORIGINAL ADVISORY:
http://www.coresecurity.com/content/vnc-remote-dos

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