medium
5.5
CWE
787 121 119
Advisory Published
Updated

CVE-2023-44176: Junos OS : Stack overflow vulnerability in CLI command processing

First published: Thu Oct 12 2023(Updated: )

A Stack-based Buffer Overflow vulnerability in the CLI command of Juniper Networks Junos OS allows a low privileged attacker to execute a specific CLI commands leading to Denial of Service. Repeated actions by the attacker will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks: Junos OS: * All versions prior to 20.4R3-S8; * 21.2 versions prior to 21.2R3-S6; * 21.3 versions prior to 21.3R3-S5; * 22.1 versions prior to 22.1R3-S3; * 22.3 versions prior to 22.3R3; * 22.4 versions prior to 22.4R3.

Credit: sirt@juniper.net

Affected SoftwareAffected VersionHow to fix
Juniper Junos<20.4
Juniper Junos=20.4
Juniper Junos=20.4-r1
Juniper Junos=20.4-r1-s1
Juniper Junos=20.4-r2
Juniper Junos=20.4-r2-s1
Juniper Junos=20.4-r2-s2
Juniper Junos=20.4-r3
Juniper Junos=20.4-r3-s1
Juniper Junos=20.4-r3-s2
Juniper Junos=20.4-r3-s3
Juniper Junos=20.4-r3-s4
Juniper Junos=20.4-r3-s5
Juniper Junos=20.4-r3-s6
Juniper Junos=20.4-r3-s7
Juniper Junos=21.2
Juniper Junos=21.2-r1
Juniper Junos=21.2-r1-s1
Juniper Junos=21.2-r1-s2
Juniper Junos=21.2-r2
Juniper Junos=21.2-r2-s1
Juniper Junos=21.2-r2-s2
Juniper Junos=21.2-r3
Juniper Junos=21.2-r3-s1
Juniper Junos=21.2-r3-s2
Juniper Junos=21.2-r3-s3
Juniper Junos=21.2-r3-s4
Juniper Junos=21.2-r3-s5
Juniper Junos=21.3
Juniper Junos=21.3-r1
Juniper Junos=21.3-r1-s1
Juniper Junos=21.3-r1-s2
Juniper Junos=21.3-r2
Juniper Junos=21.3-r2-s1
Juniper Junos=21.3-r2-s2
Juniper Junos=21.3-r3
Juniper Junos=21.3-r3-s1
Juniper Junos=21.3-r3-s2
Juniper Junos=21.3-r3-s3
Juniper Junos=21.3-r3-s4
Juniper Junos=21.4
Juniper Junos=21.4-r1
Juniper Junos=21.4-r1-s1
Juniper Junos=21.4-r1-s2
Juniper Junos=21.4-r2
Juniper Junos=21.4-r2-s1
Juniper Junos=21.4-r2-s2
Juniper Junos=21.4-r3
Juniper Junos=21.4-r3-s1
Juniper Junos=21.4-r3-s2
Juniper Junos=21.4-r3-s3
Juniper Junos=22.1-r1
Juniper Junos=22.1-r1-s1
Juniper Junos=22.1-r1-s2
Juniper Junos=22.1-r2
Juniper Junos=22.1-r2-s1
Juniper Junos=22.1-r2-s2
Juniper Junos=22.1-r3
Juniper Junos=22.1-r3-s1
Juniper Junos=22.1-r3-s2
Juniper Junos=22.2-r1
Juniper Junos=22.2-r1-s1
Juniper Junos=22.2-r1-s2
Juniper Junos=22.2-r2
Juniper Junos=22.2-r2-s1
Juniper Junos=22.2-r2-s2
Juniper Junos=22.2-r3
Juniper Junos=22.3-r1
Juniper Junos=22.3-r1-s1
Juniper Junos=22.3-r1-s2
Juniper Junos=22.3-r2
Juniper Junos=22.3-r2-s1
Juniper Junos=22.3-r2-s2
Juniper Junos=22.4-r1
Juniper Junos=22.4-r1-s1
Juniper Junos=22.4-r1-s2
Juniper Networks Junos OS<20.4
Juniper Networks Junos OS=20.4
Juniper Networks Junos OS=20.4-r1
Juniper Networks Junos OS=20.4-r1-s1
Juniper Networks Junos OS=20.4-r1-s2
Juniper Networks Junos OS=20.4-r2
Juniper Networks Junos OS=20.4-r2-s1
Juniper Networks Junos OS=20.4-r2-s2
Juniper Networks Junos OS=20.4-r2-s3
Juniper Networks Junos OS=20.4-r3
Juniper Networks Junos OS=20.4-r3-s1
Juniper Networks Junos OS=20.4-r3-s2
Juniper Networks Junos OS=20.4-r3-s3
Juniper Networks Junos OS=20.4-r3-s4
Juniper Networks Junos OS=20.4-r3-s5
Juniper Networks Junos OS=20.4-r3-s6
Juniper Networks Junos OS=20.4-r3-s7
Juniper Networks Junos OS=21.2
Juniper Networks Junos OS=21.2-r1
Juniper Networks Junos OS=21.2-r1-s1
Juniper Networks Junos OS=21.2-r1-s2
Juniper Networks Junos OS=21.2-r2
Juniper Networks Junos OS=21.2-r2-s1
Juniper Networks Junos OS=21.2-r2-s2
Juniper Networks Junos OS=21.2-r3
Juniper Networks Junos OS=21.2-r3-s1
Juniper Networks Junos OS=21.2-r3-s2
Juniper Networks Junos OS=21.2-r3-s3
Juniper Networks Junos OS=21.2-r3-s4
Juniper Networks Junos OS=21.2-r3-s5
Juniper Networks Junos OS=21.3
Juniper Networks Junos OS=21.3-r1
Juniper Networks Junos OS=21.3-r1-s1
Juniper Networks Junos OS=21.3-r2
Juniper Networks Junos OS=21.3-r2-s1
Juniper Networks Junos OS=21.3-r2-s2
Juniper Networks Junos OS=21.3-r3
Juniper Networks Junos OS=21.3-r3-s1
Juniper Networks Junos OS=21.3-r3-s2
Juniper Networks Junos OS=21.3-r3-s3
Juniper Networks Junos OS=21.3-r3-s4
Juniper Networks Junos OS=21.4
Juniper Networks Junos OS=21.4-r1
Juniper Networks Junos OS=21.4-r1-s1
Juniper Networks Junos OS=21.4-r1-s2
Juniper Networks Junos OS=21.4-r2
Juniper Networks Junos OS=21.4-r2-s1
Juniper Networks Junos OS=21.4-r2-s2
Juniper Networks Junos OS=21.4-r3
Juniper Networks Junos OS=21.4-r3-s1
Juniper Networks Junos OS=21.4-r3-s2
Juniper Networks Junos OS=21.4-r3-s3
Juniper Networks Junos OS=22.1-r1
Juniper Networks Junos OS=22.1-r1-s1
Juniper Networks Junos OS=22.1-r1-s2
Juniper Networks Junos OS=22.1-r2
Juniper Networks Junos OS=22.1-r2-s1
Juniper Networks Junos OS=22.1-r3
Juniper Networks Junos OS=22.1-r3-s1
Juniper Networks Junos OS=22.1-r3-s2
Juniper Networks Junos OS=22.2-r1
Juniper Networks Junos OS=22.2-r1-s1
Juniper Networks Junos OS=22.2-r2
Juniper Networks Junos OS=22.2-r2-s1
Juniper Networks Junos OS=22.2-r2-s2
Juniper Networks Junos OS=22.2-r3
Juniper Networks Junos OS=22.3-r1
Juniper Networks Junos OS=22.3-r1-s1
Juniper Networks Junos OS=22.3-r1-s2
Juniper Networks Junos OS=22.3-r2
Juniper Networks Junos OS=22.3-r2-s1
Juniper Networks Junos OS=22.4-r1
Juniper Networks Junos OS=22.4-r1-s1
Juniper Networks Junos OS=22.4-r1-s2

Remedy

The following software releases have been updated to resolve this specific issue: Junos OS: 20.4R3-S8, 21.2R3-S6, 21.3R3-S5, 22.1R3-S3, 22.3R3, 22.4R3, 23.2R1, and all subsequent releases.

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2023-44176?

    The severity of CVE-2023-44176 is categorized as high due to its potential to cause a Denial of Service (DoS) condition.

  • How do I fix CVE-2023-44176?

    To mitigate CVE-2023-44176, users should upgrade to the latest version of Junos OS that is not affected by this vulnerability.

  • What types of systems are affected by CVE-2023-44176?

    CVE-2023-44176 affects various versions of Juniper Networks Junos OS, including versions up to 20.4 and multiple iterations of 21.x and 22.x.

  • What can an attacker achieve with CVE-2023-44176?

    An attacker exploiting CVE-2023-44176 can execute specific CLI commands as a low privileged user, resulting in a sustained Denial of Service.

  • Is there a workaround for CVE-2023-44176?

    Currently, it is advised to update or patch the affected systems as there are no effective workarounds to eliminate the vulnerability.

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