TigerVNC version prior to 1.10.1 Improper Input Validation Vulnerability

Summary

TigerVNC version prior to 1.10.1 is vulnerable to heap buffer overflow, which could be triggered from DecodeManager::decodeRect. 

Credit:

The information has been provided by Pavel Cheremushkin

The original article can be found at:https://www.openwall.com/lists/oss-security/2019/12/20/2


Details

Vulnerability occurs due to the signdness error in processing MemOutStream. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.

 

Vulnerable Systems:

TigerVNC version prior to 1.10.1

 

CVE Information:

CVE-2019-15694

 

Disclosure Timeline:
Published Date:12/26/2019

Categories: News