SB2022041366 - Access of uninitialized pointer in Juniper Junos OS

Security Bulletin ID SB2022041366

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) Access of uninitialized pointer (CVE-ID: CVE-2022-22198)

CWE-ID: CWE-824 - Access of Uninitialized Pointer

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 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.

Remediation

Install update from vendor's website.

References

https://supportportal.juniper.net/s/article/2022-04-Security-Bulletin-Junos-OS-MS-MPC-or-MS-MIC-or-SPC-crashes-if-it-receives-a-SIP-message-with-a-specific-contact-header-format-CVE-2022-22198