SB2022071364 - Memory leak in Juniper Junos OS

Security Bulletin ID SB2022071364

CSH Severity

Medium

Patch available

YES

Number of vulnerabilities 1

Exploitation vector Remote access

Highest impact Denial of service

Breakdown by Severity

Low
Medium
High
Critical

Description

This security bulletin contains information about 1 vulnerability.

1) Memory leak (CVE-ID: CVE-2022-22209)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: 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/E:U/U:Green

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.

Remediation

Install update from vendor's website.

References

https://supportportal.juniper.net/s/article/2022-07-Security-Bulletin-Junos-OS-RIB-and-PFEs-can-get-out-of-sync-due-to-a-memory-leak-caused-by-interface-flaps-or-route-churn-CVE-2022-22209