A Use After Free vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS Evolved on PTX10001-36MR, and PTX10004, PTX10008, PTX10016 with LC1201/1202 allows an adjacent, unauthenticated attacker to cause a Denial of Service (DoS).
The process 'aftman-bt' will crash after multiple flaps on a multicast-only fast reroute (MoFRR) enabled interface. This will cause the respective FPC to stop forwarding traffic and it needs to be rebooted to restore the service.
An indication that the system experienced this issue is the following log message:
<date> <hostname> evo-aftmand-bt[<pid>]: [Error] jexpr_fdb: sanity check failed, ... , app_name L3 Mcast Routes
This issue affects Juniper Networks Junos OS Evolved on PTX10001-36MR, PTX10004, PTX10008, PTX10016 with LC1201/1202:
21.2 version 21.2R1-EVO and later versions;
21.3 version 21.3R1-EVO and later versions;
21.4 versions prior to 21.4R3-S3-EVO;
22.1 version 22.1R1-EVO and later versions;
22.2 versions prior to 22.2R3-S2-EVO;
22.3 versions prior to 22.3R3-EVO;
22.4 versions prior to 22.4R1-S2-EVO, 22.4R2-EVO.
References
Link | Resource |
---|---|
https://supportportal.juniper.net/JSA71640 | Vendor Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: juniper
Published: 2023-07-14T16:56:37.708Z
Updated: 2023-07-14T16:56:37.708Z
Reserved: 2023-06-27T16:17:25.275Z
Link: CVE-2023-36833
JSON object: View
NVD Information
Status : Analyzed
Published: 2023-07-14T17:15:09.133
Modified: 2023-07-27T13:04:56.777
Link: CVE-2023-36833
JSON object: View
Redhat Information
No data.
CWE