CVE-2023-44177

Junos OS and Junos OS Evolved: Stack overflow vulnerability in CLI command processing

State: Published
Severity: 5.5 Medium
Published: Oct 12, 2023
Updated: Sep 19, 2024
Reserved: Sep 26, 2023

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	juniper

Weaknesses

CWE-787 Out-of-bounds Write
CWE-121 Stack-based Buffer Overflow

Affected Products

Product	Versions
Junos OSJuniper Networks	before 19.1R3-S10Affected 19.2 to before 19.2R3-S7Affected 19.3 to before 19.3R3-S8Affected 19.4 to before 19.4R3-S12Affected 20.2 to before 20.2R3-S8Affected 20.4 to before 20.4R3-S8Affected 21.2 to before 21.2R3-S6Affected 21.3 to before 21.3R3-S5Affected 21.4 to before 21.4R3-S4Affected 22.1 to before 22.1R3-S3Affected 22.2 to before 22.2R3-S1Affected 22.3 to before 22.3R3Affected 22.4 to before 22.4R2Affected
Junos OS EvolvedJuniper Networks	before 20.4R3-S8-EVOAffected 21.2 to before 21.2R3-S6-EVOAffected 21.3 to before 21.3R3-S5-EVOAffected 21.4 to before 21.4R3-S4-EVOAffected 22.1 to before 22.1R3-S3-EVOAffected 22.2 to before 22.2R3-S1-EVOAffected 22.3 to before 22.3R3-EVOAffected 22.4 to before 22.4R2-EVOAffected

Product

Versions

Junos OSJuniper Networks

before 19.1R3-S10Affected
19.2 to before 19.2R3-S7Affected
19.3 to before 19.3R3-S8Affected
19.4 to before 19.4R3-S12Affected
20.2 to before 20.2R3-S8Affected
20.4 to before 20.4R3-S8Affected
21.2 to before 21.2R3-S6Affected
21.3 to before 21.3R3-S5Affected
21.4 to before 21.4R3-S4Affected
22.1 to before 22.1R3-S3Affected
22.2 to before 22.2R3-S1Affected
22.3 to before 22.3R3Affected
22.4 to before 22.4R2Affected

Junos OS EvolvedJuniper Networks

before 20.4R3-S8-EVOAffected
21.2 to before 21.2R3-S6-EVOAffected
21.3 to before 21.3R3-S5-EVOAffected
21.4 to before 21.4R3-S4-EVOAffected
22.1 to before 22.1R3-S3-EVOAffected
22.2 to before 22.2R3-S1-EVOAffected
22.3 to before 22.3R3-EVOAffected
22.4 to before 22.4R2-EVOAffected

References

https://supportportal.juniper.net/JSA73140vendor-advisory

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.