A vulnerability was found in node-tar before version 4.4.2 (excluding version 2.2.2). 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. A patch has been applied to node-tar v2.2.2).
CVE-2018-20834 - High Severity Vulnerability
tar for node
Library home page: https://registry.npmjs.org/tar/-/tar-2.2.1.tgz
Path to dependency file: /package.json
Path to vulnerable library: /package.json
Dependency Hierarchy: - nodemon-1.11.0.tgz (Root Library) - chokidar-1.7.0.tgz - fsevents-1.1.2.tgz - node-pre-gyp-0.6.36.tgz - :x: **tar-2.2.1.tgz** (Vulnerable Library)
Found in HEAD commit: 3c5fb7d3f2932ae2023353faafd51bf99b953a5f
Found in base branch: master
A vulnerability was found in node-tar before version 4.4.2 (excluding version 2.2.2). 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. A patch has been applied to node-tar v2.2.2).
Publish Date: 2019-04-30
URL: CVE-2018-20834
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: High - Availability Impact: None
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-16082
Release Date: 2019-04-30
Fix Resolution (tar): 2.2.2
Direct dependency fix Resolution (nodemon): 1.11.1
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