PT-2008-6171 · Ultravnc · Ultravnc

Published 2008-11-10 · Updated 2011-03-08 · CVE-2008-5001

Positive Technologies (AI Summary)

CVSS v2.0

9.3

High

Base vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions UltraVNC versions 1.0.2 through 1.0.4

Description The issue is related to multiple stack-based buffer overflows in functions within vncviewer/FileTransfer.cpp. This occurs when UltraVNC is in LISTENING mode or when using the DSM plugin, allowing remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified parameters.

Recommendations For UltraVNC versions 1.0.2 through 1.0.4, consider updating to a version released after 01252008 to resolve the issue. As a temporary workaround, consider disabling the LISTENING mode and the DSM plugin until a patch is available. Avoid using unspecified parameters in the affected functions until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2008-5001

Affected Products

Ultravnc

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2008-5001 · Security Note
• http://forum.ultravnc.info/viewtopic.php?p=45150#45150 · Vendor Advisory
• http://secunia.com/advisories/28804 · Vendor Advisory
• http://ultravnc.svn.sourceforge.net/viewvc/ultravnc/UltraVNC%20Project%20Root/UltraVNC/vncviewer/FileTransfer.cpp?view=log#rev183 · Note
• http://securityfocus.com/bid/27687 · Note
• http://vupen.com/english/advisories/2008/0486 · Note
• http://sourceforge.net/project/shownotes.php?release_id=571174&group_id=63887 · Note