SB2023011171 - Improper validation of array index in Juniper Junos OS
Published: January 11, 2023
Security Bulletin ID
SB2023011171
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper validation of array index (CVE-ID: CVE-2023-22408)
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 SIP ALG. A remote non-authenticated attacker can cause a Denial of Service (DoS).
When an attacker sends an SIP packets with a malformed SDP field then the SIP ALG can not process it which will lead to an FPC crash and restart.
Continued receipt of these specific packets will lead to a sustained Denial of Service.
Remediation
Install update from vendor's website.