Missing Initialization of Resource Affecting libvncserver package, versions <0:0.9.11-17.el8


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.21% (60th percentile)

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  • Snyk IDSNYK-ORACLE8-LIBVNCSERVER-2583269
  • published10 Apr 2022
  • disclosed17 Jun 2020

Introduced: 17 Jun 2020

CVE-2018-21247  (opens in a new tab)
CWE-909  (opens in a new tab)

How to fix?

Upgrade Oracle:8 libvncserver to version 0:0.9.11-17.el8 or higher.
This issue was patched in ELSA-2021-1811.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libvncserver package and not the libvncserver package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

An issue was discovered in LibVNCServer before 0.9.13. There is an information leak (of uninitialized memory contents) in the libvncclient/rfbproto.c ConnectToRFBRepeater function.

CVSS Scores

version 3.1