{"id":"CVE-2016-5285","url":"https://www.cyber-defence.io/tools/cve/CVE-2016-5285","generatedAt":"2026-10-27T22:04:13.684Z","title":"A Null pointer dereference vulnerability exists in Mozilla Network Security Services due to a missing NULL check in PK11_SignWithSymKey / ssl3_ComputeRecordMACConstantTime, which could let a remote malicious user cause a Denial of Service.","description":"A Null pointer dereference vulnerability exists in Mozilla Network Security Services due to a missing NULL check in PK11_SignWithSymKey / ssl3_ComputeRecordMACConstantTime, which could let a remote malicious user cause a Denial of Service.","published":"2019-11-15T16:15:10.000Z","lastModified":"2026-06-17T00:49:07.000Z","status":"Modified","sourceIdentifier":"security@mozilla.org","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-476"],"affected":["mozilla/nss","debian/debian linux","redhat/enterprise linux","suse/linux enterprise server","avaya/aura application enablement services","avaya/aura application server 5300","avaya/aura communication manager","avaya/aura communication manager messagint","avaya/breeze platform","avaya/call management system","avaya/iq","avaya/cs1000e firmware","avaya/cs1000m firmware","avaya/cs1000e\\/cs1000m signaling server firmware","avaya/aura conferencing","avaya/aura experience portal","avaya/ip office","avaya/aura messaging","avaya/aura session manager","avaya/aura system manager","avaya/aura utility services","avaya/meeting exchange","avaya/message networking","avaya/one-x client enablement services","avaya/proactive contact","avaya/session border controller for enterprise firmware","avaya/aura system platform firmware"],"epss":{"score":0.02279,"percentile":0.83005,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (2.28%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00011.html","source":"security@mozilla.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00037.html","source":"security@mozilla.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00049.html","tags":["Mailing List","Third Party Advisory"],"source":"security@mozilla.org"},{"url":"http://rhn.redhat.com/errata/RHSA-2016-2779.html","source":"security@mozilla.org"},{"url":"http://www.securityfocus.com/bid/94349","source":"security@mozilla.org"},{"url":"http://www.ubuntu.com/usn/USN-3163-1","source":"security@mozilla.org"},{"url":"https://bto.bluecoat.com/security-advisory/sa137","source":"security@mozilla.org"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1306103","source":"security@mozilla.org"},{"url":"https://security.gentoo.org/glsa/201701-46","source":"security@mozilla.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00011.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00037.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00049.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2016-2779.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/94349","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-3163-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bto.bluecoat.com/security-advisory/sa137","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1306103","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201701-46","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-5285","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}