Use After Free Affecting fltk package, versions <0:1.3.4-1.el7


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.2% (59th percentile)

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  • Snyk IDSNYK-RHEL7-FLTK-4693147
  • 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 RHEL:7 fltk to version 0:1.3.4-1.el7 or higher.
This issue was patched in RHSA-2017:2000.

NVD Description

Note: Versions mentioned in the description apply only to the upstream fltk package and not the fltk package as distributed by RHEL. See How to fix? for RHEL: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.