CVE-2020-14343
CVSS V2 High 10
CVSS V3 Critical 9.8
Description
A vulnerability was discovered in the PyYAML library in versions before 5.4, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. This flaw allows an attacker to execute arbitrary code on the system by abusing the python/object/new constructor. This flaw is due to an incomplete fix for CVE-2020-1747.
Overview
- CVE ID
- CVE-2020-14343
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-02-09T21:15:12
- Last Modified Date
- 2022-12-06T21:45:32
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:pyyaml:pyyaml:*:*:*:*:*:*:*:* | 1 | OR | 5.1 | 5.4 |
| cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:1.10.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:22.1.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:C/I:C/A:C
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 10
- Severity
- HIGH
- Exploitability Score
- 10
- Impact Score
- 10
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.8
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1860466 | Issue Tracking Third Party Advisory |
| https://www.oracle.com/security-alerts/cpuapr2022.html | Patch Third Party Advisory |
| https://www.oracle.com/security-alerts/cpujul2022.html |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-14343 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14343 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-04-20 16:59:57 | Added to TrackCVE | |||
| 2022-12-05 21:45:53 | 2021-02-09T21:15Z | 2021-02-09T21:15:12 | CVE Published Date | updated |
| 2022-12-05 21:45:53 | 2022-07-25T18:15:18 | CVE Modified Date | updated | |
| 2022-12-05 21:45:53 | Undergoing Analysis | Vulnerability Status | updated | |
| 2022-12-05 21:45:57 | References | updated | ||
| 2022-12-06 22:12:14 | 2022-12-06T21:45:32 | CVE Modified Date | updated | |
| 2022-12-06 22:12:14 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |