Debian Security Advisory

DSA-3753-1 libvncserver -- security update

Date Reported:
05 Jan 2017
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 850007, Bug 850008.
In Mitre's CVE dictionary: CVE-2016-9941, CVE-2016-9942.
More information:

It was discovered that libvncserver, a collection of libraries used to implement VNC/RFB clients and servers, incorrectly processed incoming network packets. This resulted in several heap-based buffer overflows, allowing a rogue server to either cause a DoS by crashing the client, or potentially execute arbitrary code on the client side.

For the stable distribution (jessie), these problems have been fixed in version 0.9.9+dfsg2-6.1+deb8u2.

For the testing (stretch) and unstable (sid) distributions, these problems have been fixed in version 0.9.11+dfsg-1.

We recommend that you upgrade your libvncserver packages.