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Debian Security Advisory DSA 3753-1 (libvncserver - security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
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.
Affected Software
Affected Software
libvncserver on Debian Linux
Detection Method
Detection Method
This check tests the installed software version using the apt package manager.
Solution
Solution
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.