Operation on a resource after expiration or release in Junos OS and Junos OS Evolved - CVE-2022-22197
Published: April 13, 2022
Vulnerability identifier: #VU82467
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-22197
CWE-ID: CWE-672
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to operation on a resource after expiration or release error in the Routing Protocol Daemon (RPD). A remote non-authenticated attacker can cause a Denial of Service (DoS).
This issue occurs when proxy-generate route-target filtering is enabled, and certain proxy-route add and delete events are happening.
Affected software
Junos OS
Junos OS Evolved
Junos OS Evolved
How to mitigate CVE-2022-22197
Install updates from vendor's website.
Junos OS - addressed in versions 17.3R3-S11, 17.4R2-S13, 17.4R3-S4, 18.3R3-S4, 18.4R1-S8, 18.4R2-S8, 18.4R3-S6, 19.1R3-S4, 19.2R1-S6, 19.2R3-S2, 19.3R2-S6, 19.3R3-S1, 19.4R1-S4, 19.4R2-S4, 19.4R3, 20.1R2, 20.2R2, 20.3R1-S2, 20.3R2, 20.4R1
Junos OS Evolved - addressed in versions 20.1R3-EVO, 20.2R3-EVO, 20.3R2-EVO, 20.4R1-EVO
Junos OS Evolved - addressed in versions 20.1R3-EVO, 20.2R3-EVO, 20.3R2-EVO, 20.4R1-EVO