CVE-2022-22168: 2022-01 Security Bulletin: Junos OS: vMX and MX150: Specific packets might cause a memory leak and eventually an FPC reboot (CVE-2022-22168)

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2022-01 Security Bulletin: Junos OS: vMX and MX150: Specific packets might cause a memory leak and eventually an FPC reboot (CVE-2022-22168)

Article ID: JSA11275 SECURITY_ADVISORIES Last Updated: 12 Jan 2022Version: 1.0 Product Affected:

This issue affects all versions of Junos OS. Affected platforms: vMX and MX150.

Problem:

An Improper Validation of Specified Type of Input vulnerability in the kernel of Juniper Networks Junos OS allows an unauthenticated adjacent attacker to trigger a Missing Release of Memory after Effective Lifetime vulnerability. Continued exploitation of this vulnerability will eventually lead to an FPC reboot and thereby a Denial of Service (DoS).

This issue affects:

Juniper Networks Junos OS on vMX and MX150:

• All versions prior to 19.2R1-S8, 19.2R3-S4;
• 19.3 versions prior to 19.3R3-S5;
• 19.4 versions prior to 19.4R2-S5, 19.4R3-S6;
• 20.1 versions prior to 20.1R3-S2;
• 20.2 versions prior to 20.2R3-S3;
• 20.3 versions prior to 20.3R3-S1;
• 20.4 versions prior to 20.4R3;
• 21.1 versions prior to 21.1R2-S1, 21.1R3;
• 21.2 versions prior to 21.2R1-S1, 21.2R2;
• 21.3 versions prior to 21.3R1-S1, 21.3R2.

Juniper SIRT is not aware of any malicious exploitation of this vulnerability.

This issue was seen during production usage.

This issue has been assigned CVE-2022-22168.

Solution:

The following software releases have been updated to resolve this specific issue: 19.2R1-S8, 19.2R3-S4, 19.4R2-S5, 19.4R3-S6, 20.1R3-S2, 20.2R3-S3, 20.3R3-S1, 20.4R3, 21.1R2-S1, 21.1R3, 21.2R1-S1, 21.2R2, 21.2R3, 21.3R1-S1, 21.3R2, 21.4R1, and all subsequent releases.

This issue is being tracked as 1599158.

Workaround:

There is no viable workaround for this issue.

Implementation:

Software releases or updates are available for download at https://support.juniper.net/support/downloads/

Modification History:

2022-01-12: Initial Publication.

CVSS Score:

6.5 (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Severity Level:

Medium

Severity Assessment:

Information for how Juniper Networks uses CVSS can be found at KB 16446 “Common Vulnerability Scoring System (CVSS) and Juniper’s Security Advisories.”

Related Links

• KB16613: Overview of the Juniper Networks SIRT Quarterly Security Bulletin Publication Process
• KB16765: In which releases are vulnerabilities fixed?
• KB16446: Common Vulnerability Scoring System (CVSS) and Juniper’s Security Advisories
• Report a Security Vulnerability - How to Contact the Juniper Networks Security Incident Response Team
• CVE-2022-22168 at cve.org

Comment on this article > Affected Products Browse the Knowledge Base for more articles related to these product categories. Select a category to begin.

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