Vulnerability · Published Jul 14, 2023 · Assigned by juniper
CVE-2023-36840Junos OS and Junos OS Evolved: An rpd crash occurs when a specific L2VPN command is run
Medium 5.5
In plain English
A medium-severity security flaw in Junos OS from Juniper Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).
Official description
A Reachable Assertion vulnerability in Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows a locally-based, low-privileged attacker to cause a Denial of Service (DoS). On all Junos OS and Junos OS Evolved, when a specific L2VPN command is run, RPD will crash and restart. Continued execution of this specific command will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS All versions prior to 19.3R3-S10; 20.1 versions prior to 20.1R3-S4; 20.2 versions prior to 20.2R3-S6; 20.3 versions prior to 20.3R3-S6; 20.4 versions prior to 20.4R3-S5; 21.1 versions prior to 21.1R3-S4; 21.2 versions prior to 21.2R3-S3; 21.3 versions prior to 21.3R3-S2; 21.4 versions prior to 21.4R3; 22.1 versions prior to 22.1R3; 22.2 versions prior to 22.2R2; 22.3 versions prior to 22.3R2; Juniper Networks Junos OS Evolved All versions prior to 20.4R3-S7-EVO; 21.1 versions prior to 21.1R3-S3-EVO; 21.2 versions prior to 21.2R3-S5-EVO; 21.3 versions prior to 21.3R3-S4-EVO; 21.4 versions prior to 21.4R3-EVO; 22.1 versions prior to 22.1R3-EVO; 22.2 versions prior to 22.2R2-EVO; 22.3 versions prior to 22.3R2-EVO;
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Juniper Networks | Junos OS | unspecified – before 19.3R3-S1020.1 – before 20.1R3-S420.2 – before 20.2R3-S620.3 – before 20.3R3-S620.4 – before 20.4R3-S521.1 – before 21.1R3-S421.2 – before 21.2R3-S321.3 – before 21.3R3-S2 |
| Juniper Networks | Junos OS Evolved | unspecified – before 20.4R3-S7-EVO21.1 – before 21.1R3-S3-EVO21.2 – before 21.2R3-S5-EVO21.3 – before 21.3R3-S4-EVO21.4 – before 21.4R3-EVO22.1 – before 22.1R3-EVO22.2 – before 22.2R2-EVO22.3 – before 22.3R2-EVO |
Weakness: CWE-617 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H