Input validation error in Junos OS Evolved and Junos OS - CVE-2023-44185
Published: October 16, 2023
Vulnerability identifier: #VU82054
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-44185
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows remote unauthenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation in the routing protocol daemon (rpd) upon receiving and processing a specific malformed ISO VPN BGP UPDATE packet. A remote unauthenticated attacker can send specially crafted input to the system and perform a denial of service (DoS) attack.
Affected software
Junos OS Evolved
Junos OS
Junos OS
How to mitigate CVE-2023-44185
Install updates from vendor's website.
Junos OS Evolved - addressed in versions 20.4R3-S6-EVO, 21.2R3-S4-EVO, 21.3R3-S3-EVO, 21.4R3-S3-EVO, 22.1R3-EVO, 22.2R2-S1-EVO, 22.2R3-EVO, 22.3R1-S2-EVO, 22.3R2-EVO, 22.4R1-EVO
Junos OS - addressed in versions 20.4R3-S6, 21.1R3-S5, 21.2R3-S4, 21.3R3-S3, 21.4R3-S3, 22.1R2-S2, 22.1R3, 22.2R2-S1, 22.2R3, 22.3R1-S2, 22.3R2, 22.4R1
Junos OS - addressed in versions 20.4R3-S6, 21.1R3-S5, 21.2R3-S4, 21.3R3-S3, 21.4R3-S3, 22.1R2-S2, 22.1R3, 22.2R2-S1, 22.2R3, 22.3R1-S2, 22.3R2, 22.4R1