Improper validation of syntactic correctness of input in Junos OS and Junos OS Evolved - CVE-2023-44204
Published: October 17, 2023
Vulnerability identifier: #VU82105
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-44204
CWE-ID: CWE-1286
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper validation of syntactic correctness of input in routing protocol daemon (rpd) when a malformed BGP UPDATE packet is received over an established BGP session. A remote non-authenticated attacker can perform a denial of service (DoS) attack.
Affected software
Junos OS
Junos OS Evolved
Junos OS Evolved
How to mitigate CVE-2023-44204
Install updates from vendor's website.
Junos OS - addressed in versions 21.4R3-S4, 22.1R3-S3, 22.2R3-S2, 22.3R2-S2, 22.3R3, 22.4R2-S1, 22.4R3, 23.1R2, 23.2R1, 23.2R2, 23.3R1
Junos OS Evolved - addressed in versions 22.1R3-S3-EVO, 22.3R2-S2-EVO, 22.4R3-EVO, 23.1R2-EVO, 23.2R2-EVO, 23.3R1-EVO
Junos OS Evolved - addressed in versions 22.1R3-S3-EVO, 22.3R2-S2-EVO, 22.4R3-EVO, 23.1R2-EVO, 23.2R2-EVO, 23.3R1-EVO