CVE-2021-0209

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.

Risk Information

Base Score

6.5

MODERATE

Vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Score

Exploitation Probability

0.076

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2021-0209 are fixed in junos_evolved 19.4R2-S2-EVO	NCM
Vulnerabilities CVE-2021-0209 are fixed in junos_evolved 20.1R2-S1-EVO	NCM
Access of Uninitialized Pointer Vulnerability (CVE-2021-0209)	NCM

Patch Details

Click to see the patches provided by ManageEngine for this CVE

Patch ID	Patch Description
PATCH-1704500	Security Update for junos_evolved 20.2R2
PATCH-1704500	Security Update for junos_evolved 20.2R2

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234