National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-20834 Detail

Current Description

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).

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 7.5 HIGH
Vector:  CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://access.redhat.com/errata/RHSA-2019:1821
https://github.com/npm/node-tar/commit/7ecef07da6a9e72cc0c4d0c9c6a8e85b6b52395d
https://github.com/npm/node-tar/commit/b0c58433c22f5e7fe8b1c76373f27e3f81dcd4c8 Patch Third Party Advisory
https://github.com/npm/node-tar/commits/v2.2.2
https://github.com/npm/node-tar/compare/58a8d43...a5f7779 Patch Third Party Advisory
https://hackerone.com/reports/344595 Exploit Third Party Advisory
https://nvd.nist.gov/vuln/detail/CVE-2018-20834

Weakness Enumeration

CWE-ID CWE Name Source
CWE-59 Improper Link Resolution Before File Access ('Link Following') NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:node-tar_project:node-tar:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
2.2.2
 cpe:2.3:a:node-tar_project:node-tar:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
3.0.0
Up to (excluding)
4.4.2


Change History

4 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-20834
NVD Published Date:
04/30/2019
NVD Last Modified:
09/04/2019