CVE-2021-0299
CVSS V2 High 7.1
CVSS V3 High 7.5
Description
An Improper Handling of Exceptional Conditions vulnerability in the processing of a transit or directly received malformed IPv6 packet in Juniper Networks Junos OS results in a kernel crash, causing the device to restart, leading to a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue only affects systems with IPv6 configured. Devices with only IPv4 configured are not vulnerable to this issue. This issue affects Juniper Networks Junos OS: 19.4 versions prior to 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R1-S1, 20.2R2. This issue does not affect Juniper Networks Junos OS versions prior to 19.4R1.
Overview
- CVE ID
- CVE-2021-0299
- Assigner
- sirt@juniper.net
- Vulnerability Status
- Analyzed
- Published Version
- 2021-10-19T19:15:08
- Last Modified Date
- 2021-10-26T14:22:28
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:juniper:junos:19.4:-:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:juniper:junos:19.4:r1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:juniper:junos:19.4:r1-s1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:juniper:junos:19.4:r1-s2:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:juniper:junos:19.4:r1-s3:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:juniper:junos:19.4:r1-s4:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:juniper:junos:19.4:r2:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:juniper:junos:19.4:r2-s1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:juniper:junos:19.4:r2-s2:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:juniper:junos:19.4:r2-s3:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:juniper:junos:19.4:r2-s4:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:juniper:junos:19.4:r2-s5:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:juniper:junos:20.1:r1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:juniper:junos:20.1:r1-s1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:juniper:junos:20.1:r1-s2:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:juniper:junos:20.1:r1-s3:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:juniper:junos:20.1:r1-s4:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:juniper:junos:20.2:r1:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:N/I:N/A:C
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- COMPLETE
- Base Score
- 7.1
- Severity
- HIGH
- Exploitability Score
- 8.6
- Impact Score
- 6.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://kb.juniper.net/JSA11213 | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-0299 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0299 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:49:50 | Added to TrackCVE | |||
| 2022-12-05 12:40:47 | 2021-10-19T19:15Z | 2021-10-19T19:15:08 | CVE Published Date | updated |
| 2022-12-05 12:40:47 | 2021-10-26T14:22:28 | CVE Modified Date | updated | |
| 2022-12-05 12:40:47 | Analyzed | Vulnerability Status | updated |