Main Vulnerability Database SB2023011171

SB2023011171 - Improper validation of array index in Juniper Junos OS

Published: January 11, 2023

Security Bulletin ID SB2023011171

CSH 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 vulnerability.

1) Improper validation of array index (CVE-ID: CVE-2023-22408)

CWE-ID: CWE-129 - Improper Validation of Array Index

CVSSv4: 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/E:U/U:Green

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.

References

https://supportportal.juniper.net/s/article/2023-01-Security-Bulletin-Junos-OS-SRX-5000-Series-Upon-processing-of-a-specific-SIP-packet-an-FPC-can-crash-CVE-2023-22408