CVE-2018-20834
- Source
- https://cve.org/CVERecord?id=CVE-2018-20834
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-20834.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2018-20834
- Aliases
- Downstream
- Published
- 2019-04-30T19:29:03.327Z
- Modified
- 2026-04-11T21:31:45.593910Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
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).
- References
-
- https://github.com/npm/node-tar/commits/v2.2.2
- https://access.redhat.com/errata/RHSA-2019:1821
- https://nvd.nist.gov/vuln/detail/CVE-2018-20834
- https://github.com/npm/node-tar/commit/7ecef07da6a9e72cc0c4d0c9c6a8e85b6b52395d
- https://github.com/npm/node-tar/commit/b0c58433c22f5e7fe8b1c76373f27e3f81dcd4c8
- https://github.com/npm/node-tar/compare/58a8d43...a5f7779
- https://hackerone.com/reports/344595
Affected packages
Git / github.com/isaacs/node-tar
Affected ranges
- Type
- GIT
- Repo
- https://github.com/isaacs/node-tar
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedIntroducedFixedFixedFixed
- Database specific
{ "source": [ "CPE_FIELD", "REFERENCES" ], "extracted_events": [ { "introduced": "0" }, { "fixed": "2.2.2" }, { "introduced": "3.0.0" }, { "fixed": "4.4.2" } ], "cpe": "cpe:2.3:a:isaacs:tar:*:*:*:*:*:*:*:*" }
Affected versions
0.*
0.1.0
0.1.10
0.1.11
0.1.12
0.1.13
0.1.2
0.1.3
0.1.5
0.1.6
0.1.7
0.1.8
0.1.9
v0.*
v0.1.14
v0.1.15
v0.1.16
v0.1.17
v0.1.18
v0.1.19
v0.1.20
v1.*
v1.0.0
v1.0.1
v1.0.2
v1.0.3
v2.*
v2.0.0
v2.0.1
v2.1.0
v2.1.1
v2.2.1
v3.*
v3.0.0
v3.0.1
v3.1.0
v3.1.1
v3.1.10
v3.1.11
v3.1.12
v3.1.13
v3.1.14
v3.1.15
v3.1.2
v3.1.3
v3.1.4
v3.1.5
v3.1.6
v3.1.7
v3.1.8
v3.1.9
v3.2.0
v4.*
v4.0.0
v4.0.1
v4.0.2
v4.1.0
v4.1.1
v4.1.2
v4.2.0
v4.3.0
v4.3.1
v4.3.2
v4.3.3
v4.4.0
v4.4.1