CVE Vulnerability

CVE-2021-0209

In Juniper Networks Junos OS Evolved an attacker sending certain valid BGP update packets may cause Junos OS Evolved to access an uninitialized pointer causing RPD to core leading to a Denial of Service (DoS). Continued receipt of these types of valid BGP update packets will cause an extended Denial of Service condition. RPD will require a restart to recover. An indicator of compromise is to see if the file rpd.re exists by issuing the command: show system core-dumps This issue affects: Juniper Networks Junos OS Evolved 19.4 versions prior to 19.4R2-S2-EVO; 20.1 versions prior to 20.1R1-S2-EVO, 20.1R2-S1-EVO. This issue does not affect Junos OS.

5.7 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 5.5 / Impact : 6.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://kb.juniper.net/JSA11099 Vendor Advisory
Configurations

Configuration 1

cpe:2.3:o:juniper:junos_os_evolved:20.1:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:20.1:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:19.4:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:20.1:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:19.4:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:19.4:r2:*:*:*:*:*:*
Information

Published : 2021-01-15 06:15

Updated : 2021-10-25 03:20

NVD link : CVE-2021-0209

Mitre link : CVE-2021-0209

Products Affected
No products.
CWE
CWE-824

Access of Uninitialized Pointer