CVE-2021-41495
CVSS V2 Low 3.5
CVSS V3 Medium 5.3
Description
** DISPUTED ** Null Pointer Dereference vulnerability exists in numpy.sort in NumPy < and 1.19 in the PyArray_DescrNew function due to missing return-value validation, which allows attackers to conduct DoS attacks by repetitively creating sort arrays. NOTE: While correct that validation is missing, an error can only occur due to an exhaustion of memory. If the user can exhaust memory, they are already privileged. Further, it should be practically impossible to construct an attack which can target the memory exhaustion to occur at exactly this place.
Overview
- CVE ID
- CVE-2021-41495
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-12-17T20:15:08
- Last Modified Date
- 2022-07-28T16:45:44
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:numpy:numpy:*:*:*:*:*:*:*:* | 1 | OR | 1.19.0 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:S/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- SINGLE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 3.5
- Severity
- LOW
- Exploitability Score
- 6.8
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 5.3
- Base Severity
- MEDIUM
- Exploitability Score
- 1.6
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/numpy/numpy/issues/19038 | Exploit Issue Tracking Third Party Advisory |
| https://www.oracle.com/security-alerts/cpujul2022.html | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-41495 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41495 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:33:42 | Added to TrackCVE | |||
| 2022-12-06 04:19:55 | 2021-12-17T20:15Z | 2021-12-17T20:15:08 | CVE Published Date | updated |
| 2022-12-06 04:19:55 | 2022-07-28T16:45:44 | CVE Modified Date | updated | |
| 2022-12-06 04:19:55 | Analyzed | Vulnerability Status | updated | |
| 2022-12-06 04:20:00 | References | updated |