Heap Out-of-Bounds Write Vulnerability in LibVNC Server by LibVNC
CVE-2018-20750

9.8CRITICAL

Key Information:

Vendor

Libvnc Project

Status
Libvncserver
Vendor
CVE Published:
30 January 2019

What is CVE-2018-20750?

LibVNC Server contains a vulnerability that allows for a heap out-of-bounds write. This issue arises from an incomplete fix related to a previous vulnerability (CVE-2018-15127) in the file libvncserver/rfbserver.c. Exploiting this vulnerability could allow an attacker to execute arbitrary code or crash the application, posing significant security risks.

References

https://lists.debian.org/debian-lts-announce/2019/01/msg0...
mailing-listx_refsource_MLIST
http://www.securityfocus.com/bid/106825
vdb-entryx_refsource_BID
https://github.com/LibVNC/libvncserver/issues/273
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.