node-tar applies PAX size override to intermediary GNU long-name/long-link headers, causing tar parser interpretation differential (file smuggling)

Summary tar node-tar applies a PAX extended header's size= record and other PAX overrides to the next header entry of any type, including intermediary metadata headers such as a GNU long-name L or long-link K entry. Per POSIX pax, a PAX extended header x describes the next file entry, not the...