cbcvebase.
CVE-2023-22391
published 2023-01-13

CVE-2023-22391: A vulnerability in class-of-service (CoS) queue management in Juniper Networks Junos OS on the ACX2K Series devices allows an unauthenticated network-based…

high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
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. Due to this misclassification of traffic, receipt of a high rate of these specific packets will cause delays in the processing of other traffic, leading to a Denial of Service (DoS). Continued receipt of this amount of traffic will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS on ACX2K Series: All versions prior to 19.4R3-S9; All 20.2 versions; 20.3 versions prior to 20.3R3-S6 on ACX2K Series; 20.4 versions prior to 20.4R3-S4 on ACX2K Series; All 21.1 versions; 21.2 versions prior to 21.2R3-S3 on ACX2K Series. Note: This issues affects legacy ACX2K Series PPC-based devices. This platform reached Last Supported Version (LSV) as of the Junos OS 21.2 Release.

Affected

14 ranges
VendorProductVersion rangeFixed in
juniperjunos< 19.419.4
juniperjunos——
juniperjunos——
juniperjunos——
juniperjunos——
juniperjunos——
juniperjunos——
juniperjunos_os——
juniper_networksjunos_os>= 20.2R1 < 20.2*20.2*
juniper_networksjunos_os>= 20.3 < 20.3R3-S620.3R3-S6
juniper_networksjunos_os>= 20.4 < 20.4R3-S420.4R3-S4
juniper_networksjunos_os>= 21.1R1 < 21.1*21.1*
juniper_networksjunos_os>= 21.2 < 21.2R3-S321.2R3-S3
juniper_networksjunos_os>= unspecified < 19.4R3-S919.4R3-S9