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VULNERABILITIES

CVE-2018-20835 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector: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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URLSource(s)Tag(s)
https://github.com/mafintosh/tar-fs/commit/06672828e6fa29ac8551b1b6f36c852a9a3c58a2 CVEPatchThird Party Advisory
https://github.com/mafintosh/tar-fs/compare/d590fc7...a35ce2f CVEPatchThird Party Advisory
https://hackerone.com/reports/344595 CVEExploitThird Party Advisory
https://github.com/mafintosh/tar-fs/commit/06672828e6fa29ac8551b1b6f36c852a9a3c58a2 [email protected]PatchThird Party Advisory
https://github.com/mafintosh/tar-fs/compare/d590fc7...a35ce2f [email protected]PatchThird Party Advisory

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-20Improper Input Validation[email protected]

Affected Products

ProductVersions
tar-fs project tar-fs
< 1.16.2

CPE

  • cpe:2.3:a:tar-fs_project:tar-fs:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2018-20835
NVD Published Date:
Apr 30, 2019
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2018-20835 Details - Not Deferred