Rapid7 Vulnerability & Exploit Database

Oracle Solaris 11: CVE-2019-15691: Vulnerability in VNC

Free InsightVM Trial No Credit Card Necessary
Watch Demo See how it all works
Back to Search

Oracle Solaris 11: CVE-2019-15691: Vulnerability in VNC

Severity
7
CVSS
(AV:N/AC:L/Au:S/C:P/I:P/A:P)
Published
12/26/2019
Created
01/20/2021
Added
01/19/2021
Modified
02/17/2022

Description

TigerVNC version prior to 1.10.1 is vulnerable to stack use-after-return, which occurs due to incorrect usage of stack memory in ZRLEDecoder. If decoding routine would throw an exception, ZRLEDecoder may try to access stack variable, which has been already freed during the process of stack unwinding. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.

Solution(s)

  • oracle-solaris-11-4-upgrade-desktop-remote-desktop-tigervnc-1-10-1-11-4-21-0-1-69-0
  • oracle-solaris-11-4-upgrade-x11-server-xvnc-1-10-1-11-4-21-0-1-69-0

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;