Loop with Unreachable Exit Condition ('Infinite Loop') The advisory has been revoked - it doesn't affect any version of package libvncserver  (opens in a new tab)


Threat Intelligence

EPSS
3.52% (89th percentile)

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  • Snyk IDSNYK-UBUNTU2004-LIBVNCSERVER-1013795
  • published19 Dec 2018
  • disclosed19 Dec 2018

Introduced: 19 Dec 2018

CVE-2018-20021  (opens in a new tab)
CWE-835  (opens in a new tab)

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:20.04.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libvncserver package and not the libvncserver package as distributed by Ubuntu.

LibVNC before commit c3115350eb8bb635d0fdb4dbbb0d0541f38ed19c contains a CWE-835: Infinite loop vulnerability in VNC client code. Vulnerability allows attacker to consume excessive amount of resources like CPU and RAM