nss is vulnerable to denial of service (DoS) attacks. The vulnerability exists as a null pointer dereference vulnerability in NSS since 3.24.0 was found when server receives empty SSLv2 messages resulting into denial of service by remote attacker.
www.debian.org/security/2017/dsa-3872
www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
www.securityfocus.com/bid/98744
www.securitytracker.com/id/1038579
access.redhat.com/errata/RHSA-2017:1364
access.redhat.com/errata/RHSA-2017:1365
access.redhat.com/errata/RHSA-2017:1567
access.redhat.com/errata/RHSA-2017:1712
access.redhat.com/security/cve/CVE-2017-7502
access.redhat.com/security/updates/classification/#important
bugzilla.redhat.com/show_bug.cgi?id=1446631
hg.mozilla.org/projects/nss/rev/55ea60effd0d