CVE-2018-20834
CVSS V2 Medium 6.4
CVSS V3 High 7.5
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).
Overview
- CVE ID
- CVE-2018-20834
- Assigner
- cve@mitre.org
- Vulnerability Status
- Modified
- Published Version
- 2019-04-30T19:29:03
- Last Modified Date
- 2019-09-04T20:15:10
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:node-tar_project:node-tar:*:*:*:*:*:*:*:* | 1 | OR | 2.2.2 | |
| cpe:2.3:a:node-tar_project:node-tar:*:*:*:*:*:*:*:* | 1 | OR | 3.0.0 | 4.4.2 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 6.4
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://hackerone.com/reports/344595 | Exploit Third Party Advisory |
| https://github.com/npm/node-tar/compare/58a8d43...a5f7779 | Patch Third Party Advisory |
| https://github.com/npm/node-tar/commit/b0c58433c22f5e7fe8b1c76373f27e3f81dcd4c8 | Patch Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2019:1821 | |
| https://github.com/npm/node-tar/commit/7ecef07da6a9e72cc0c4d0c9c6a8e85b6b52395d | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-20834 | |
| https://github.com/npm/node-tar/commits/v2.2.2 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-20834 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20834 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:46:54 | Added to TrackCVE | |||
| 2022-12-03 20:14:35 | 2019-04-30T19:29Z | 2019-04-30T19:29:03 | CVE Published Date | updated |
| 2022-12-03 20:14:35 | 2019-09-04T20:15:10 | CVE Modified Date | updated | |
| 2022-12-03 20:14:35 | Modified | Vulnerability Status | updated |