CVE-2018-20835
CVSS V2 Medium 6.4
CVSS V3 High 7.5
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.
Overview
- CVE ID
- CVE-2018-20835
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2019-04-30T19:29:03
- Last Modified Date
- 2019-05-03T14:49:26
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:tar-fs_project:tar-fs:*:*:*:*:*:*:*:* | 1 | OR | 1.16.2 |
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/mafintosh/tar-fs/compare/d590fc7...a35ce2f | Patch Third Party Advisory |
| https://github.com/mafintosh/tar-fs/commit/06672828e6fa29ac8551b1b6f36c852a9a3c58a2 | Patch Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-20835 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20835 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:53:45 | Added to TrackCVE | |||
| 2022-12-03 20:14:38 | 2019-04-30T19:29Z | 2019-04-30T19:29:03 | CVE Published Date | updated |
| 2022-12-03 20:14:38 | 2019-05-03T14:49:26 | CVE Modified Date | updated | |
| 2022-12-03 20:14:38 | Analyzed | Vulnerability Status | updated |