Unchecked input for loop condition in Junos OS - CVE-2023-22409
Published: January 11, 2023
Vulnerability identifier: #VU82472
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-22409
CWE-ID: CWE-606
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.
The vulnerability exists due to unchecked input for loop condition error in a NAT library. A local authenticated user can cause a Denial of Service (DoS).
When an inconsistent "deterministic NAT" configuration is present on an SRX, or MX with SPC3 and then a specific CLI command is issued the SPC will crash and restart.
Repeated execution of this command will lead to a sustained DoS.
Affected software
Junos OS
How to mitigate CVE-2023-22409
Install updates from vendor's website.
Junos OS - addressed in versions 19.4R3-S10, 20.2R3-S6, 20.3R3-S6, 20.4R3-S5, 21.1R3-S4, 21.2R3-S3, 21.3R3-S3, 21.4R3-S1, 22.1R2-S2, 22.1R3, 22.2R2, 22.3R1