Description
On affected platforms running Arista EOS with IS-IS configured on a broadcast interface, an unauthenticated attacker can send a crafted IS-IS Hello Protocol Data Unit (PDU) that causes the device to tear down an established IS-IS adjacency. This may result in traffic disruption and loss of IP reachability for prefixes advertised through that adjacency.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Arista Networks EOS
Default version status: unaffected
4.36.0 to ≤ 4.36.1Faffected4.35.0 to ≤ 4.35.5Maffected4.34.0 to ≤ 4.34.7.1Maffected4.33.0 to ≤ 4.33.9Maffected4.32.0 to < 4.33.0Faffected4.31.0 to < 4.32.0Faffected