An Improper Neutralization of Equivalent Special Elements vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on PTX Series allows a unauthenticated, adjacent attacker to cause a Denial of Service (DoS). When MPLS packets are meant to be sent to a flexible tunnel interface (FTI) and if the FTI tunnel is down, these will hit the reject NH, due to which the packets get sent to the CPU and cause a host path wedge condition. This will cause the FPC to hang and requires a manual restart to recover. Please note that this issue specifically affects PTX1000, PTX3000, PTX5000 with FPC3, PTX10002-60C, and PTX10008/16 with LC110x. Other PTX Series devices and Line Cards (LC) are not affected. The following log message can be seen when the issue occurs: Cmerror Op Set: Host Loopback: HOST LOOPBACK WEDGE DETECTED IN PATH ID <id> (URI: /fpc/<fpc>/pfe/<pfe>/cm/<cm>/Host_Loopback/<cm>/HOST_LOOPBACK_MAKE_CMERROR_ID[<id>]) This issue affects Juniper Networks Junos OS: * All versions earlier than 20.4R3-S8; * 21.1 versions earlier than 21.1R3-S4; * 21.2 versions earlier than 21.2R3-S6; * 21.3 versions earlier than 21.3R3-S3; * 21.4 versions earlier than 21.4R3-S5; * 22.1 versions earlier than 22.1R2-S2, 22.1R3; * 22.2 versions earlier than 22.2R2-S1, 22.2R3.
oryginał ENCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HJuniper Junos
OSJuniper20.421.121.221.321.422.122.2
Powiązane podatności
A PHP External Variable Modification vulnerability in J-Web of Juniper Networks Junos OS on EX Series and SR...
Out-of-bounds Write w J-Web Juniper Junos OS — RCE z uprawnieniami root
This issue is not applicable to NFX NextGen Software. On NFX Series devices the use of Hard-coded Credentials ...
A buffer size validation vulnerability in the overlayd service of Juniper Networks Junos OS may allow an unaut...
An improper check for unusual or exceptional conditions in Juniper Networks Junos OS and Junos OS Evolved Rout...