title: Red Hat Security Advisory: neon security update
description: neon: billion laughs DoS attack neon: Improper verification of x509v3 certificate with NULL (zero) byte in certain fields
cpes: cpe:/o:redhat:enterprise_linux:4::as cpe:/o:redhat:enterprise_linux:4::desktop cpe:/o:redhat:enterprise_linux:4::es cpe:/o:redhat:enterprise_linux:4::ws cpe:/o:redhat:enterprise_linux:5::client cpe:/o:redhat:enterprise_linux:5::client_workstation cpe:/o:redhat:enterprise_linux:5::server