PT-2014-2017 · Libvncserver+5 · Libvncserver+5
Nicolas Ruff
·
Published
2014-09-24
·
Updated
2020-10-23
·
CVE-2014-6052
CVSS v2.0
7.5
High
| Vector | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Name of the Vulnerable Software and Affected Versions
LibVNCServer versions 0.9.9 and earlier
Description
The issue is related to the HandleRFBServerMessage function in LibVNCServer, which is associated with an error in designating the full screen. Exploitation of this issue may allow a remote attacker to access confidential data, compromise its integrity, and cause a denial of service. The vulnerability can be triggered by a remote VNC server specifying a large screen size in certain messages, potentially leading to application crashes or arbitrary code execution.
Recommendations
For LibVNCServer versions 0.9.9 and earlier, consider disabling the HandleRFBServerMessage function as a temporary workaround until a patch is available. Restrict access to the LibVNCServer library to minimize the risk of exploitation. Avoid using the library with untrusted VNC servers until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
RCE
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Centos
Libvncserver
Red Hat
Suse
Ubuntu