CVE-2021-0262
CVSS V2 Low 3.3
CVSS V3 Medium 6.5
Description
Through routine static code analysis of the Juniper Networks Junos OS software codebase, the Secure Development Life Cycle team identified a Use After Free vulnerability in PFE packet processing on the QFX10002-60C switching platform. Exploitation of this vulnerability may allow a logically adjacent attacker to trigger a Denial of Service (DoS). Continued exploitation of this vulnerability will sustain the Denial of Service (DoS) condition. This issue only affects QFX10002-60C devices. No other product or platform is vulnerable to this issue. This issue affects Juniper Networks Junos OS on QFX10002-60C: 19.1 version 19.1R3-S1 and later versions; 19.1 versions prior to 19.1R3-S3; 19.2 version 19.2R2 and later versions; 19.2 versions prior to 19.2R3-S1; 20.2 versions prior to 20.2R1-S2. This issue does not affect Juniper Networks Junos OS: versions prior to 19.1R3; 19.2 versions prior to 19.2R2; any version of 19.3; version 20.2R2 and later releases.
Overview
- CVE ID
- CVE-2021-0262
- Assigner
- sirt@juniper.net
- Vulnerability Status
- Analyzed
- Published Version
- 2021-04-22T20:15:09
- Last Modified Date
- 2021-05-04T21:21:28
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:juniper:junos:19.1:r3-s1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:juniper:junos:19.1:r3-s2:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:juniper:junos:19.2:r2:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:juniper:junos:19.2:r2-s1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:juniper:junos:19.2:r3:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:juniper:junos:20.2:r1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:juniper:junos:20.2:r1-s1:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:A/AC:L/Au:N/C:N/I:N/A:P
- Access Vector
- ADJACENT_NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 3.3
- Severity
- LOW
- Exploitability Score
- 6.5
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- ADJACENT_NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 6.5
- Base Severity
- MEDIUM
- Exploitability Score
- 2.8
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://kb.juniper.net/JSA11153 | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-0262 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0262 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:17:02 | Added to TrackCVE | |||
| 2022-12-06 02:21:43 | 2021-04-22T20:15Z | 2021-04-22T20:15:09 | CVE Published Date | updated |
| 2022-12-06 02:21:43 | 2021-05-04T21:21:28 | CVE Modified Date | updated | |
| 2022-12-06 02:21:43 | Analyzed | Vulnerability Status | updated |