CVE-2021-42386
CVSS V2 Medium 6.5
CVSS V3 High 7.2
Description
A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the nvalloc function
Overview
- CVE ID
- CVE-2021-42386
- Assigner
- reefs@jfrog.com
- Vulnerability Status
- Modified
- Published Version
- 2021-11-15T21:15:08
- Last Modified Date
- 2023-04-25T22:15:09
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:busybox:busybox:*:*:*:*:*:*:*:* | 1 | OR | 1.16.0 | 1.33.1 |
| cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:S/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 6.5
- Severity
- MEDIUM
- Exploitability Score
- 8
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- HIGH
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7.2
- Base Severity
- HIGH
- Exploitability Score
- 1.2
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://claroty.com/team82/research/unboxing-busybox-14-vulnerabilities-uncovered-by-claroty-jfrog | |
| https://jfrog.com/blog/unboxing-busybox-14-new-vulnerabilities-uncovered-by-claroty-and-jfrog/ | Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6T2TURBYYJGBMQTTN2DSOAIQGP7WCPGV/ | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UQXGOGWBIYWOIVXJVRKHZR34UMEHQBXS/ | Mailing List Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20211223-0002/ | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-42386 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42386 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:39:07 | Added to TrackCVE | |||
| 2022-12-05 14:35:21 | security@jfrog.com | reefs@jfrog.com | CVE Assigner | updated |
| 2022-12-05 14:35:21 | 2021-11-15T21:15Z | 2021-11-15T21:15:08 | CVE Published Date | updated |
| 2022-12-05 14:35:21 | 2022-01-04T17:14:17 | CVE Modified Date | updated | |
| 2022-12-05 14:35:21 | Analyzed | Vulnerability Status | updated | |
| 2023-04-25 23:10:42 | 2023-04-25T22:15:09 | CVE Modified Date | updated | |
| 2023-04-25 23:10:42 | Analyzed | Modified | Vulnerability Status | updated |
| 2023-04-25 23:10:43 | References | updated |