Null Pointer Dereference in LibVNC Client Code Affecting Multiple Linux Distributions
CVE-2018-20024

7.5HIGH

Key Information:

Vendor

Libvnc Project

Status
Libvnc
Vendor
CVE Published:
19 December 2018

What is CVE-2018-20024?

A null pointer dereference vulnerability exists in the LibVNC client code. This flaw allows an attacker to exploit the vulnerability, potentially leading to a denial of service (DoS) condition. Systems utilizing the affected versions of LibVNC may become unresponsive or crash due to mishandling null pointers, making them vulnerable to interruptions and affecting services relying on stable VNC connections.

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Deploy the Patch

Affected Version(s)

LibVNC commit 4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7

References

https://www.debian.org/security/2019/dsa-4383
vendor-advisoryx_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2018/12/msg0...
mailing-listx_refsource_MLIST
https://ics-cert.kaspersky.com/advisories/klcert-advisori...
x_refsource_MISC

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

JSON
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