Vulnerability CVE-2021-0209


Published: 2021-01-15

Description:
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.

Type:

CWE-824

(Access of Uninitialized Pointer)

CVSS2 => (AV:A/AC:M/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5.7/10
6.9/10
5.5/10
Exploit range
Attack complexity
Authentication
Adjacent network
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Juniper -> Junos evolved 

 References:
https://kb.juniper.net/JSA11099

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