An Improper Check for Unusual or Exceptional Conditions vulnerability in the kernel of Juniper Network Junos OS on MX Series allows a network based attacker with low privileges to cause a denial of service.
If a scaled configuration for Source class usage (SCU) / destination class usage (DCU) (more than 10 route classes) is present and the SCU/DCU statistics are gathered by executing specific SNMP requests or CLI commands, a 'vmcore' for the RE kernel will be seen which leads to a device restart. Continued exploitation of this issue will lead to a sustained DoS.
This issue only affects MX Series devices with MPC10, MPC11 or LC9600, and MX304. No other MX Series devices are affected.
This issue affects Juniper Networks Junos OS:
* All versions earlier than 20.4R3-S9;
* 21.2 versions earlier than 21.2R3-S6;
* 21.3 versions earlier than 21.3R3-S5;
* 21.4 versions earlier than 21.4R3;
* 22.1 versions earlier than 22.1R3;
* 22.2 versions earlier than 22.2R2;
* 22.3 versions earlier than 22.3R2.
References
Link | Resource |
---|---|
https://supportportal.juniper.net/JSA75744 | Vendor Advisory |
https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L | Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: juniper
Published: 2024-01-12T00:54:22.697Z
Updated: 2024-01-12T00:54:22.697Z
Reserved: 2023-12-27T19:38:25.707Z
Link: CVE-2024-21603
JSON object: View
NVD Information
Status : Analyzed
Published: 2024-01-12T01:15:48.467
Modified: 2024-01-19T22:56:11.320
Link: CVE-2024-21603
JSON object: View
Redhat Information
No data.
CWE