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.
Metrics
CVSS 2.0 10.0/10
AV:N/AC:L/Au:N/C:C/I:C/A:CWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://forum.ultravnc.info/viewtopic.php?t=14654
- http://secunia.com/advisories/33807
- http://vnc-tight.svn.sourceforge.net/viewvc/vnc-tight?view=rev&revision=3564
- http://www.coresecurity.com/content/vnc-integer-overflowsExploit
- http://www.securityfocus.com/archive/1/500632/100/0/threaded
- http://www.securityfocus.com/bid/33568Exploit, Patch
- http://www.vupen.com/english/advisories/2009/0321
- http://www.vupen.com/english/advisories/2009/0322
- https://www.exploit-db.com/exploits/7990
- https://www.exploit-db.com/exploits/8024
- http://forum.ultravnc.info/viewtopic.php?t=14654
- http://secunia.com/advisories/33807
- http://vnc-tight.svn.sourceforge.net/viewvc/vnc-tight?view=rev&revision=3564
- http://www.coresecurity.com/content/vnc-integer-overflowsExploit
- http://www.securityfocus.com/archive/1/500632/100/0/threaded
- http://www.securityfocus.com/bid/33568Exploit, Patch
- http://www.vupen.com/english/advisories/2009/0321
- http://www.vupen.com/english/advisories/2009/0322
- https://www.exploit-db.com/exploits/7990
- https://www.exploit-db.com/exploits/8024
Timeline
- Published
- Feb 4, 2009
- Last modified
- Jun 16, 2026
- NVD status
- Modified