Input validation error in Junos OS Evolved and Juniper Junos OS - CVE-2023-0026
Published: June 22, 2023 / Updated: October 4, 2023
Vulnerability identifier: #VU77650
CSH Severity: Medium
CVSS v4.0: 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/E:U/U:Green
CVE-ID: CVE-2023-0026
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Juniper Networks, Inc.
Affected software:
Junos OS Evolved
Juniper Junos OS
Junos OS Evolved
Juniper Junos OS
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in the Routing Protocol Daemon (rpd) when processing BGP update messages. A remote attacker can send a specially crafted BGP update message over an established BGP session and perform a denial of service (DoS) attack.
How to mitigate CVE-2023-0026
Install update from vendor's website.