In etcd before versions 3.3.23 and 3.4.10, it is possible to have an entry index greater then the number of entries in the ReadAll method in wal/wal.go. This could cause issues when WAL entries are being read during consensus as an arbitrary etcd consensus participant could go down from a runtime panic when reading the entry.
{
"cpes": [
"cpe:2.3:a:etcd:etcd:*:*:*:*:*:*:*:*"
],
"severity": "Medium"
}