Improper Initialization Affecting libvnc/libvncserver package, versions [0,0.9.13)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.39% (74th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UNMANAGED-LIBVNCLIBVNCSERVER-2365262
  • published26 Jan 2022
  • disclosed29 Oct 2019
  • creditUnknown

Introduced: 29 Oct 2019

CVE-2019-15681  (opens in a new tab)
CWE-665  (opens in a new tab)

How to fix?

Upgrade libvnc/libvncserver to version 0.9.13 or higher.

Overview

Affected versions of this package are vulnerable to Improper Initialization. LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, which allow an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This attack appear to be exploitable via network connectivity. These vulnerabilities have been fixed in commit d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a.

References

CVSS Scores

version 3.1