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Vulnerability · Published Oct 12, 2023 · Assigned by juniper

CVE-2023-44177Junos OS and Junos OS Evolved: Stack overflow vulnerability in CLI command processing

Medium 5.5

In plain English

A medium-severity out-of-bounds write in Junos OS from Juniper Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities).

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 93.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
Juniper Networks Junos OS 0 – before 19.1R3-S1019.2 – before 19.2R3-S719.3 – before 19.3R3-S819.4 – before 19.4R3-S1220.2 – before 20.2R3-S820.4 – before 20.4R3-S821.2 – before 21.2R3-S621.3 – before 21.3R3-S5
Juniper Networks Junos OS Evolved 0 – before 20.4R3-S8-EVO21.2 – before 21.2R3-S6-EVO21.3 – before 21.3R3-S5-EVO21.4 – before 21.4R3-S4-EVO22.1 – before 22.1R3-S3-EVO22.2 – before 22.2R3-S1-EVO22.3 – before 22.3R3-EVO22.4 – before 22.4R2-EVO

Weakness: CWE-787, CWE-121 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References