Improper Initialization in Junos OS and Junos OS Evolved - CVE-2022-22169

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Main Vulnerability Database Vulnerabilities #VU59567

Improper Initialization in Junos OS and Junos OS Evolved - CVE-2022-22169

Published: January 12, 2022


Vulnerability identifier: #VU59567
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-2022-22169
CWE-ID: CWE-665
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper initialization in the routing protocol daemon (rpd) . A remote attacker can send specific packets in certain orders and at specific timings to force OSPFv3 to unexpectedly enter graceful-restart (GR helper mode) even though there is not any Grace-LSA received in OSPFv3 causing a Denial of Service (DoS)


Affected software

Junos OS
Junos OS Evolved

How to mitigate CVE-2022-22169

Install updates from vendor's website.

Junos OS - addressed in versions 15.1R7-S11, 18.3R3-S6, 18.4R2-S9, 18.4R3-S10, 19.1R2-S3, 19.1R3-S7, 19.2R1-S7, 19.2R3-S4, 19.3R2-S7, 19.3R3-S4, 19.4R3-S6, 20.1R3-S1, 20.2R3-S3, 20.3R3-S1, 20.4R2-S2, 20.4R3, 21.1R3, 21.2R1-S1, 21.2R2, 21.3R1
Junos OS Evolved - addressed in versions 21.2R2-EVO, 21.3R1-EVO

External References

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