Memory leak in Junos OS - CVE-2022-22209
Published: July 13, 2022
Vulnerability identifier: #VU82501
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-2022-22209
CWE-ID: CWE-401
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.
A Missing Release of Memory after Effective Lifetime vulnerability in the kernel of Juniper Networks Junos OS allows an unauthenticated network based attacker to cause a Denial of Service (DoS).
On all Junos platforms, the Kernel Routing Table (KRT) queue can get stuck due to a memory leak triggered by interface flaps or route churn leading to RIB and PFEs getting out of sync.
Affected software
Junos OS
How to mitigate CVE-2022-22209
Install updates from vendor's website.
Junos OS - addressed in versions 21.2R3, 21.3R2-S1, 21.3R3, 21.4R1-S2, 21.4R2, 22.1R1