Use After Free Affecting tigervnc package, versions <0:1.8.0-1.el7


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.36% (74th percentile)

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  • Snyk IDSNYK-CENTOS7-TIGERVNC-2088030
  • published26 Jul 2021
  • disclosed27 Mar 2017

Introduced: 27 Mar 2017

CVE-2017-7393  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Centos:7 tigervnc to version 0:1.8.0-1.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tigervnc package and not the tigervnc package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

In TigerVNC 1.7.1 (VNCSConnectionST.cxx VNCSConnectionST::fence), an authenticated client can cause a double free, leading to denial of service or potentially code execution.