CyberRota Analysis
AI-GeneratedThe vulnerability in Juniper Networks' Junos OS on QFX10000 Series devices allows unauthenticated adjacent attackers to exploit improper handling of IPv6 multicast traffic, leading to a Denial-of-Service (DoS) condition. This results in packet flooding that can saturate network links, disrupting legitimate traffic. Organizations utilizing affected QFX10000 platforms, particularly in EVPN-VxLAN scenarios, should prioritize patching to versions 23.2R2-S7, 23.4R2-S8, or 24.2R2-S4 to mitigate this risk.
Original NVD Description
An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on QFX10000 Series allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS). On all QFX10000 platforms in an EVPN-VxLAN scenario, if an attacker sends IPv6 multicast traffic and these packets reach the non-IRB interface of a spine switch it floods the packet to other spines and all Ethernet Segment Identifier (ESI) leaf switches. This flooding causes the packet to be forwarded in a endless loop, which can lead to saturation of the involved links and in turn impact to legitimate traffic. This issue affects Junos OS on QFX10000 Series: * all versions before 23.2R2-S7, * 23.4 versions before 23.4R2-S8, * 24.2 versions before 24.2R2-S4, * 24.4 versions before 24.4R2-S4. This issue does not affect Junos version after 24.4 as the QFX10000 Series devices are not supported on newer versions anymore.
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