Description
Multiple integer signedness errors in (1) UltraVNC 1.0.2 and 1.0.5 and (2) TightVnc 1.3.9 allow remote VNC servers to cause a denial of service (heap corruption and application crash) or possibly execute arbitrary code via a large length value in a message, related to the (a) ClientConnection::CheckBufferSize and (b) ClientConnection::CheckFileZipBufferSize functions in ClientConnection.cpp.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://forum.ultravnc.info/viewtopic.php?t=14654 ↗
- http://vnc-tight.svn.sourceforge.net/viewvc/vnc-tight?view=rev&revision=3564 ↗
- http://www.vupen.com/english/advisories/2009/0321 ↗
- http://www.securityfocus.com/bid/33568 ↗
- http://www.securityfocus.com/archive/1/500632/100/0/threaded ↗
- https://www.exploit-db.com/exploits/8024 ↗
- http://www.coresecurity.com/content/vnc-integer-overflows ↗
- http://www.vupen.com/english/advisories/2009/0322 ↗
- https://www.exploit-db.com/exploits/7990 ↗
- http://secunia.com/advisories/33807 ↗