NULL pointer dereference in Junos OS - CVE-2022-22232
Published: October 21, 2022
Vulnerability identifier: #VU68572
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-2022-22232
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in the Packet Forwarding Engine on SRX Series routers, if Unified Threat Management (UTM) Enhanced Content Filtering (CF) is enabled. A remote attacker can send specific transit traffic to the device and force the PFE to crash and restart, resulting in a denial of service condition.
Affected software
Junos OS
How to mitigate CVE-2022-22232
Install update from vendor's website.
Junos OS - addressed in versions 21.4R1-S2, 21.4R2, 22.1R1-S1, 22.1R2, 22.2R1