GLSA-200608-05 : LibVNCServer: Authentication bypass
High Nessus Plugin ID 22147
SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-200608-05 (LibVNCServer: Authentication bypass)
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.
SolutionAll LibVNCServer users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-libs/libvncserver-0.8.2'