CVE-2021-24031
CVSS V2 Low 2.1
CVSS V3 Medium 5.5
Description
In the Zstandard command-line utility prior to v1.4.1, output files were created with default permissions. Correct file permissions (matching the input) would only be set at completion time. Output files could therefore be readable or writable to unintended parties.
Overview
- CVE ID
- CVE-2021-24031
- Assigner
- cve-assign@fb.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-03-04T21:15:12
- Last Modified Date
- 2021-04-14T15:28:44
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:facebook:zstandard:*:*:*:*:*:*:*:* | 1 | OR | 1.4.1 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:P/I:N/A:N
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 2.1
- Severity
- LOW
- Exploitability Score
- 3.9
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 5.5
- Base Severity
- MEDIUM
- Exploitability Score
- 1.8
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://www.facebook.com/security/advisories/cve-2021-24031 | Vendor Advisory |
| https://github.com/facebook/zstd/issues/1630 | Exploit Issue Tracking Third Party Advisory |
| https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981404 | Exploit Issue Tracking Mailing List Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-24031 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-24031 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:15:50 | Added to TrackCVE | |||
| 2022-12-05 23:08:20 | 2021-03-04T21:15Z | 2021-03-04T21:15:12 | CVE Published Date | updated |
| 2022-12-05 23:08:20 | 2021-04-14T15:28:44 | CVE Modified Date | updated | |
| 2022-12-05 23:08:20 | Analyzed | Vulnerability Status | updated |