CVE-2018-20969
7.8 · HIGHOverview
CVE-2018-20969 is a high-severity vulnerability affecting gnu patch. It was published on August 16, 2019 and has a CVSS 3.0 base score of 7.8 (HIGH).
This vulnerability has a CVSS 3.0 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
do_ed_script in pch.c in GNU patch through 2.7.6 does not block strings beginning with a ! character. NOTE: this is the same commit as for CVE-2019-13638, but the ! syntax is specific to ed, and is unrelated to a shell metacharacter.
Remediation
Check the references section for vendor advisories and patches from gnu. Update patch to the latest patched version. 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.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| gnu | patch | 0 | Affected |
References
Frequently Asked Questions
What is CVE-2018-20969?
CVE-2018-20969 is a high-severity vulnerability affecting gnu patch. It was published on August 16, 2019 and has a CVSS 3.0 base score of 7.8 (HIGH).
How severe is CVE-2018-20969?
This vulnerability has a CVSS 3.0 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2018-20969?
Check the references section for vendor advisories and patches from gnu. Update patch to the latest patched version. 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-2018-20969?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-20969 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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