CVE-2022-22224: Junos OS and Junos OS Evolved: PPMD goes into infinite loop upon receipt of malformed OSPF TLV
An Improper Check or Handling of Exceptional Conditions vulnerability in the processing of a malformed OSPF TLV in Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause the periodic packet management daemon (PPMD) process to go into an infinite loop, which in turn can cause protocols and functions reliant on PPMD such as OSPF neighbor reachability to be impacted, resulting in a sustained Denial of Service (DoS) condition. The DoS condition persists until the PPMD process is manually restarted. This issue affects: Juniper Networks Junos OS: All versions prior to 19.1R3-S9; 19.2 versions prior to 19.2R3-S5; 19.3 versions prior to 19.3R3-S3; 19.4 versions prior to 19.4R3-S9; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R3-S1; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2. Juniper Networks Junos OS Evolved: All versions prior to 20.4R3-S3-EVO; 21.1 versions prior to 21.1R2-EVO.
Affected Software
Remediation
Information
Event History
Frequently Asked Questions
What is the severity of CVE-2022-22224?
CVE-2022-22224 is rated as high severity, allowing unauthenticated adjacent attackers to disrupt network operations.
How do I fix CVE-2022-22224?
To mitigate CVE-2022-22224, users should upgrade to the latest patched version of Juniper Networks Junos OS.
Which versions of Junos OS are affected by CVE-2022-22224?
CVE-2022-22224 affects multiple versions of Junos OS including versions up to 19.1 and specific 19.2, 19.3, 19.4, and 20.1 releases.
Can CVE-2022-22224 be exploited remotely?
Yes, CVE-2022-22224 can be exploited by unauthenticated adjacent attackers through the network.
What is the impact of exploiting CVE-2022-22224?
Exploitation of CVE-2022-22224 can lead to denial of service conditions affecting packet management services.