Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2018-20022

7.5 · HIGH

LibVNC before 2f5b2ad1c6c99b1ac6482c95844a84d66bb52838 contains multiple weaknesses CWE-665: Improper Initialization vulnerability in VNC client code that allows attacker to read stack memory and c…

Published Dec 19, 2018CWE-665EPSS 2.94%

Overview

CVE-2018-20022 is a high-severity vulnerability. It was published on December 19, 2018 and has a CVSS 3.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

LibVNC before 2f5b2ad1c6c99b1ac6482c95844a84d66bb52838 contains multiple weaknesses CWE-665: Improper Initialization vulnerability in VNC client code that allows attacker to read stack memory and can be abuse for information disclosure. Combined with another vulnerability, it can be used to leak stack memory layout and in bypassing ASLR

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-032-libvnc-multiple-memory-leaks/Reflists.debian.org/debian-lts-announce/2018/12/msg00017.htmlReflists.debian.org/debian-lts-announce/2019/10/msg00042.htmlReflists.debian.org/debian-lts-announce/2019/11/msg00033.htmlReflists.debian.org/debian-lts-announce/2019/12/msg00028.htmlRefsecurity.gentoo.org/glsa/201908-05Refsecurity.gentoo.org/glsa/202006-06Refusn.ubuntu.com/3877-1/Refusn.ubuntu.com/4547-1/Refusn.ubuntu.com/4547-2/

How CyberStrike helps

Frequently asked questions

What is CVE-2018-20022?

CVE-2018-20022 is a high-severity vulnerability. It was published on December 19, 2018 and has a CVSS 3.0 base score of 7.5 (HIGH).

How severe is CVE-2018-20022?

This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2018-20022?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2018-20022?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-20022 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related HIGH CVEs from 2018

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999