Improper handling of exceptional conditions in Junos OS - CVE-2023-22391
Published: January 11, 2023
Vulnerability identifier: #VU82482
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-2023-22391
CWE-ID: CWE-755
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
A vulnerability in class-of-service (CoS) queue management in Juniper Networks Junos OS on the ACX2K Series devices allows an unauthenticated network-based attacker to cause a Denial of Service (DoS). Specific packets are being incorrectly routed to a queue used for other high-priority traffic such as BGP, PIM, ICMP, ICMPV6 ND and ISAKMP.
Affected software
Junos OS
How to mitigate CVE-2023-22391
Install updates from vendor's website.
Junos OS - addressed in versions 19.4R3-S9, 20.3R3-S6, 20.4R3-S4