Main Vulnerability Database Vulnerabilities #VU59564

Memory leak in Junos OS and Junos OS Evolved - CVE-2022-22172

Published: January 12, 2022

Vulnerability identifier: #VU59564

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-2022-22172

CWE-ID: CWE-401

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak in the Layer-2 control protocols daemon (l2cpd). A remote attacker can send specially crafted LLDP packets to the system and perform denial of service attack.

Affected software

Junos OS
Junos OS Evolved

How to mitigate CVE-2022-22172

Install updates from vendor's website.

Junos OS - addressed in versions 19.2R1-S8, 19.2R3-S4, 19.3R3-S5, 19.4R3-S7, 20.1R3-S3, 20.2R3-S2, 20.3R3-S1, 20.4R3, 21.1R2-S2, 21.1R3, 21.2R2, 21.3R1
Junos OS Evolved - addressed in versions 20.4R3-S2-EVO, 21.2R2-EVO, 21.3R1-EVO

External References

https://kb.juniper.net/InfoCenter/index?page=content&id=JSA11278&cat=SIRT_1&actp=LIST

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