Improper validation of array index in Junos OS Evolved and Junos OS - CVE-2023-22401
Published: January 11, 2023
Vulnerability identifier: #VU82477
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-22401
CWE-ID: CWE-129
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper validation of array index error in the Advanced Forwarding Toolkit Manager daemon (aftmand). A remote non-authenticated attacker can cause a Denial of Service (DoS).
On the PTX10008 and PTX10016 platforms running Junos OS or Junos OS Evolved, when a specific SNMP MIB is queried this will cause a PFE crash and the FPC will go offline and not automatically recover.
A system restart is required to get the affected FPC in an operational state again.
Affected software
Junos OS Evolved
Junos OS
Junos OS
How to mitigate CVE-2023-22401
Install updates from vendor's website.
Junos OS Evolved - addressed in versions 21.4R2-S1-EVO, 22.1R3-EVO, 22.2R1-S1-EVO, 22.2R2-EVO
Junos OS - addressed in versions 22.1R3, 22.2R2
Junos OS - addressed in versions 22.1R3, 22.2R2