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.

CVSS v3 6.5 MEDIUM
CVSS v2.0 5.7 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

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

5.7^/10

CVSS v2.0 : MEDIUM

Vector : AV:A/AC:M/Au:N/C:N/I:N/A:C

Exploitability : 5.5 / Impact : 6.9

Access Vector ADJACENT_NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

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

Configurations

Configuration 1 (hide)

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

History

21 Nov 2024, 05:42

Type	Values Removed	Values Added
References	~~() https://kb.juniper.net/JSA11099 - Vendor Advisory~~	() https://kb.juniper.net/JSA11099 - Vendor Advisory

Information

Published : 2021-01-15 18:15

Updated : 2024-11-21 05:42

NVD link : CVE-2021-0209

Mitre link : CVE-2021-0209

CVE.ORG link : CVE-2021-0209

JSON object : View

Products Affected

juniper

junos_os_evolved

CWE

CWE-824

Access of Uninitialized Pointer

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