medium
5.5
CWE
787 121 119
Advisory Published
Updated

CVE-2023-44177: Junos OS and Junos OS Evolved: 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 and Junos EVO 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 19.1R3-S10; * 19.2 versions prior to 19.2R3-S7; * 19.3 versions prior to 19.3R3-S8; * 19.4 versions prior to 19.4R3-S12; * 20.2 versions prior to 20.2R3-S8; * 20.4 versions prior to 20.4R3-S8; * 21.2 versions prior to 21.2R3-S6; * 21.3 versions prior to 21.3R3-S5; * 21.4 versions prior to 21.4R3-S4; * 22.1 versions prior to 22.1R3-S3; * 22.2 versions prior to 22.2R3-S1; * 22.3 versions prior to 22.3R3; * 22.4 versions prior to 22.4R2. Junos OS Evolved: * All versions prior to 20.4R3-S8-EVO; * 21.2 versions prior to 21.2R3-S6-EVO; * 21.3 versions prior to 21.3R3-S5-EVO; * 21.4 versions prior to 21.4R3-S4-EVO; * 22.1 versions prior to 22.1R3-S3-EVO; * 22.2 versions prior to 22.2R3-S1-EVO; * 22.3 versions prior to 22.3R3-EVO; * 22.4 versions prior to 22.4R2-EVO.

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=22.3-r2-s2
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: 19.1R3-S10, 19.2R3-S7, 19.3R3-S8, 19.4R3-S12, 20.2R3-S8, 20.4R3-S8, 21.2R3-S5, 21.2R3-S6, 21.3R3-S5, 21.4R3-S4, 22.1R3-S3, 22.2R3-S1, 22.3R3, 22.4R2, 22.4R3, 23.2R1, and all subsequent releases. Junos OS Evolved: 20.4R3-S8-EVO, 21.2R3-S6-EVO, 21.3R3-S5-EVO, 21.4R3-S4-EVO, 22.1R3-S3-EVO, 22.2R3-S1-EVO, 22.3R3-EVO, 22.4R2-EVO, 22.4R3-EVO, 23.2R1-EVO, and all subsequent releases.

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2023-44177?

    CVE-2023-44177 is classified as a Denial of Service (DoS) vulnerability.

  • How does CVE-2023-44177 exploit work in Juniper Networks Junos?

    CVE-2023-44177 exploits a stack-based buffer overflow in the CLI command of Juniper Networks Junos.

  • Which versions of Junos are affected by CVE-2023-44177?

    CVE-2023-44177 affects various versions of Junos including those up to 20.4 and starting with 21.2.

  • How do I mitigate CVE-2023-44177?

    Mitigation for CVE-2023-44177 involves applying the recommended patches provided by Juniper Networks.

  • What impact does CVE-2023-44177 have on systems?

    CVE-2023-44177 can lead to sustained Denial of Service (DoS) conditions on affected systems.

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