Vulnerability CVE-2008-0610
Published: 2008-02-06   Modified: 2012-02-12

Description:
Stack-based buffer overflow in the ClientConnection::NegotiateProtocolVersion function in vncviewer/ClientConnection.cpp in vncviewer for UltraVNC 1.0.2 and 1.0.4 before 01252008, when in LISTENING mode or when using the DSM plugin, allows remote attackers to execute arbitrary code or cause a denial of service (crash) via a modified size value.

See advisories in our WLB2 database:
Topic
Author
Date
High
UltraVNC 1.0.2 Client (vncviewer.exe) Buffer Overflow
noperand
27.03.2012

Type:

CWE-119

 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

CVSS2 => (AV:N/AC:M/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
9.3/10
10/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Ultravnc -> Ultravnc 

 References:
http://www.kb.cert.org/vuls/id/721460
http://www.securityfocus.com/bid/27561
http://secunia.com/advisories/28747
http://www.vupen.com/english/advisories/2008/0392
http://www.securitytracker.com/id?1019293
http://ultravnc.svn.sourceforge.net/viewvc/ultravnc/UltraVNC%20Project%20Root/UltraVNC/vncviewer/ClientConnection.cpp?sortby=date&r1=169&r2=168&pathrev=169
http://sourceforge.net/project/shownotes.php?release_id=571174&group_id=63887
http://forum.ultravnc.info/viewtopic.php?t=11850
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