Access of uninitialized pointer in Junos OS - CVE-2022-22198
Published: April 13, 2022
Vulnerability identifier: #VU82469
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-2022-22198
CWE-ID: CWE-824
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 access of uninitialized pointer error in the SIP ALG. A remote non-authenticated attacker can cause a Denial of Service (DoS).
Continued receipt of these specific packets will cause a sustained Denial of Service condition.
On all MX and SRX platforms, if the SIP ALG is enabled, an MS-MPC or MS-MIC, or SPC will crash if it receives a SIP message with a specific contact header format.
Affected software
Junos OS
How to mitigate CVE-2022-22198
Install updates from vendor's website.
Junos OS - addressed in versions 20.4R3, 21.1R2-S1, 21.1R3, 21.2R2, 21.3R1