CVE-2021-0226

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
On Juniper Networks Junos OS Evolved devices, receipt of a specific IPv6 packet may cause an established IPv6 BGP session to terminate, creating a Denial of Service (DoS) condition. Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue does not affect IPv4 BGP sessions. This issue affects IBGP or EBGP peer sessions with IPv6. This issue affects: Juniper Networks Junos OS Evolved: 19.4 versions prior to 19.4R2-S3-EVO; 20.1 versions prior to 20.1R2-S3-EVO; 20.2 versions prior to 20.2R2-S1-EVO; 20.3 versions prior to 20.3R2-EVO. This issue does not affect Juniper Networks Junos OS releases.
Overview
  • CVE ID
  • CVE-2021-0226
  • Assigner
  • sirt@juniper.net
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-04-22T20:15:08
  • Last Modified Date
  • 2021-10-07T17:12:04
Weakness Enumerations
CWE URL
CWE-665 http://cwe.mitre.org/data/definitions/665.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:juniper:junos_os_evolved:20.1:r1:*:*:*:*:*:* 1 OR
cpe:2.3:o:juniper:junos_os_evolved:20.1:r1-s1:*:*:*:*:*:* 1 OR
cpe:2.3:o:juniper:junos_os_evolved:20.1:r2:*:*:*:*:*:* 1 OR
cpe:2.3:o:juniper:junos_os_evolved:20.1:r2-s1:*:*:*:*:*:* 1 OR
cpe:2.3:o:juniper:junos_os_evolved:20.1:r2-s2:*:*:*:*:*:* 1 OR
cpe:2.3:o:juniper:junos_os_evolved:20.2:r1:*:*:*:*:*:* 1 OR
cpe:2.3:o:juniper:junos_os_evolved:20.2:r1-s1:*:*:*:*:*:* 1 OR
cpe:2.3:o:juniper:junos_os_evolved:20.2:r2:*:*:*:*:*:* 1 OR
cpe:2.3:o:juniper:junos_os_evolved:20.3:r1:*:*:*:*:*:* 1 OR
cpe:2.3:o:juniper:junos_os_evolved:20.3:r1-s1:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
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/JSA11121 Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-0226
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0226
History
Created Old Value New Value Data Type Notes
2022-05-10 06:52:10 Added to TrackCVE
2022-12-06 02:17:36 2021-04-22T20:15Z 2021-04-22T20:15:08 CVE Published Date updated
2022-12-06 02:17:36 2021-10-07T17:12:04 CVE Modified Date updated
2022-12-06 02:17:36 Analyzed Vulnerability Status updated