NULL Pointer Dereference in LibVNCServer Affecting Multiple Vendors
CVE-2020-14397

7.5HIGH

Key Information:

Vendor
Libvnc Project
Status
Libvncserver
Vendor
CVE Published:
17 June 2020

Summary

A vulnerability exists in LibVNCServer versions prior to 0.9.13 due to a NULL pointer dereference in the rfbregion.c file. This flaw can lead to potential application instability or crashes in affected systems, allowing attackers to execute arbitrary code or perform denial-of-service attacks if exploited. Users of LibVNCServer are advised to update to the latest version to mitigate this issue.

References

https://github.com/LibVNC/libvncserver/compare/LibVNCServ...
x_refsource_MISC
https://github.com/LibVNC/libvncserver/commit/38e98ee61d7...
x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2020/06/msg0...
mailing-listx_refsource_MLIST

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.