CVE-2018-20835
7.5 · HIGHOverview
CVE-2018-20835 is a high-severity vulnerability affecting tar-fs_project tar-fs. It was published on April 30, 2019 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
A vulnerability was found in tar-fs before 1.16.2. An Arbitrary File Overwrite issue exists when extracting a tarball containing a hardlink to a file that already exists on the system, in conjunction with a later plain file with the same name as the hardlink. This plain file content replaces the existing file content.
Remediation
Check the references section for vendor advisories and patches from tar-fs_project. Update tar-fs 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 |
|---|---|---|---|
| tar-fs_project | tar-fs | >= 0, < 1.16.2 | Affected |
References
Frequently Asked Questions
What is CVE-2018-20835?
CVE-2018-20835 is a high-severity vulnerability affecting tar-fs_project tar-fs. It was published on April 30, 2019 and has a CVSS 3.0 base score of 7.5 (HIGH).
How severe is CVE-2018-20835?
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-2018-20835?
Check the references section for vendor advisories and patches from tar-fs_project. Update tar-fs 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-2018-20835?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-20835 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.
How CyberStrike Helps
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