7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.05 Low
EPSS
Percentile
92.9%
LibVNCServer is a GPL’ed library for creating VNC servers.
LibVNCServer fails to properly validate protocol types effectively letting users decide what protocol to use, such as “Type 1 - None”. LibVNCServer will accept this security type, even if it is not offered by the server.
An attacker could use this vulnerability to gain unauthorized access with the privileges of the user running the VNC server.
There is no known workaround at this time.
All LibVNCServer users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-libs/libvncserver-0.8.2"
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Gentoo | any | all | net-libs/libvncserver | < 0.8.2 | UNKNOWN |