Rapid7 Vulnerability & Exploit Database

Amazon Linux AMI 2: CVE-2019-15691: Security patch for tigervnc (ALAS-2020-1552)

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

Amazon Linux AMI 2: CVE-2019-15691: Security patch for tigervnc (ALAS-2020-1552)

Severity
7
CVSS
(AV:N/AC:L/Au:S/C:P/I:P/A:P)
Published
12/26/2019
Created
10/28/2020
Added
10/28/2020
Modified
09/30/2022

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)

  • amazon-linux-ami-2-upgrade-tigervnc
  • amazon-linux-ami-2-upgrade-tigervnc-debuginfo
  • amazon-linux-ami-2-upgrade-tigervnc-icons
  • amazon-linux-ami-2-upgrade-tigervnc-license
  • amazon-linux-ami-2-upgrade-tigervnc-server
  • amazon-linux-ami-2-upgrade-tigervnc-server-applet
  • amazon-linux-ami-2-upgrade-tigervnc-server-minimal
  • amazon-linux-ami-2-upgrade-tigervnc-server-module

References

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
Free InsightVM Trial View All Features

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

;