CVE-2016-5285

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: 2019-11-15 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2016-5285 is rated Moderate Risk (59.4/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.58%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-5285

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-02-23 0.65% 1.58% +0.94%
2 2025-03-30 2.09% 0.65% -1.45%
3 2025-03-29 — 2.09% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-5285

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2016-5285

OS Trackers for CVE-2016-5285

vendor priority summary link
debian not yet assigned CVE-2016-5285 not yet assigned priority: Debian including 1 source packages (nss), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2016-5285
gentoo normal CVE-2016-5285: 1 GLSA(s) (201701-46), 1 atom(s) (dev-libs/nss); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2016-5285
redhat medium — https://access.redhat.com/security/cve/CVE-2016-5285
suse medium CVE-2016-5285 severity moderate: SUSE including 95 source package names (MozillaFirefox-45.5.0esr-88.1, MozillaFirefox-45.5.1esr-59.1, …), 389 product×package rows across 53 product lines (Image SLES12-SP5-Azure-BYOS, Image SLES12-SP5-Azure-Basic-On-Demand, … (53 product lines)): Fixed 389. https://www.suse.com/security/cve/CVE-2016-5285/
ubuntu medium CVE-2016-5285 medium priority: Ubuntu including 1 source packages (nss), 6 status rows across 6 suites (precise, trusty, upstream, xenial, yakkety, zesty): released 4, not-affected 2. https://ubuntu.com/security/CVE-2016-5285

Affected software / configurations for CVE-2016-5285

Vendor Product Version Raw CPE
mozilla nss < 3.26 cpe:2.3:a:mozilla:nss:*:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
debian debian_linux 10.0 cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
redhat enterprise_linux 5.0 cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:*
redhat enterprise_linux 6.0 cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
redhat enterprise_linux 7.0 cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
suse linux_enterprise_server 11 cpe:2.3:o:suse:linux_enterprise_server:11:sp2:*:*:ltss:*:*:*
avaya aura_application_enablement_services >= 6.1, <= 6.3.3 cpe:2.3:a:avaya:aura_application_enablement_services:*:*:*:*:*:*:*:*
avaya aura_application_enablement_services 7.0 cpe:2.3:a:avaya:aura_application_enablement_services:7.0:*:*:*:*:*:*:*
avaya aura_application_server_5300 3.0 cpe:2.3:a:avaya:aura_application_server_5300:3.0:-:*:*:*:*:*:*
avaya aura_application_server_5300 3.0 cpe:2.3:a:avaya:aura_application_server_5300:3.0:sp1:*:*:*:*:*:*
avaya aura_application_server_5300 3.0 cpe:2.3:a:avaya:aura_application_server_5300:3.0:sp10:*:*:*:*:*:*
avaya aura_application_server_5300 3.0 cpe:2.3:a:avaya:aura_application_server_5300:3.0:sp10.1:*:*:*:*:*:*
avaya aura_application_server_5300 3.0 cpe:2.3:a:avaya:aura_application_server_5300:3.0:sp11:*:*:*:*:*:*
avaya aura_application_server_5300 3.0 cpe:2.3:a:avaya:aura_application_server_5300:3.0:sp11.1:*:*:*:*:*:*
avaya aura_application_server_5300 3.0 cpe:2.3:a:avaya:aura_application_server_5300:3.0:sp12:*:*:*:*:*:*
avaya aura_application_server_5300 3.0 cpe:2.3:a:avaya:aura_application_server_5300:3.0:sp12.1:*:*:*:*:*:*
avaya aura_application_server_5300 3.0 cpe:2.3:a:avaya:aura_application_server_5300:3.0:sp12.2:*:*:*:*:*:*
avaya aura_application_server_5300 3.0 cpe:2.3:a:avaya:aura_application_server_5300:3.0:sp12.3:*:*:*:*:*:*
avaya aura_application_server_5300 3.0 cpe:2.3:a:avaya:aura_application_server_5300:3.0:sp12.5:*:*:*:*:*:*
avaya aura_application_server_5300 3.0 cpe:2.3:a:avaya:aura_application_server_5300:3.0:sp3:*:*:*:*:*:*
avaya aura_application_server_5300 3.0 cpe:2.3:a:avaya:aura_application_server_5300:3.0:sp5:*:*:*:*:*:*
avaya aura_application_server_5300 3.0 cpe:2.3:a:avaya:aura_application_server_5300:3.0:sp7:*:*:*:*:*:*
avaya aura_communication_manager >= 6.0, <= 6.3.117.0 cpe:2.3:a:avaya:aura_communication_manager:*:*:*:*:*:*:*:*
avaya aura_communication_manager 7.0 cpe:2.3:a:avaya:aura_communication_manager:7.0:-:*:*:*:*:*:*
avaya aura_communication_manager 7.0 cpe:2.3:a:avaya:aura_communication_manager:7.0:sp:*:*:*:*:*:*
avaya aura_communication_manager 7.0 cpe:2.3:a:avaya:aura_communication_manager:7.0:sp3:*:*:*:*:*:*
avaya aura_communication_manager_messagint 7.0 cpe:2.3:a:avaya:aura_communication_manager_messagint:7.0:-:*:*:*:*:*:*
avaya aura_communication_manager_messagint 7.0 cpe:2.3:a:avaya:aura_communication_manager_messagint:7.0:sp1:*:*:*:*:*:*
avaya breeze_platform >= 3.0, <= 3.2 cpe:2.3:a:avaya:breeze_platform:*:*:*:*:*:*:*:*
avaya call_management_system >= 18.0.0.1, <= 18.0.0.2 cpe:2.3:a:avaya:call_management_system:*:*:*:*:*:*:*:*
avaya call_management_system 17.0 cpe:2.3:a:avaya:call_management_system:17.0:-:*:*:*:*:*:*
avaya call_management_system 17.0 cpe:2.3:a:avaya:call_management_system:17.0:r3:*:*:*:*:*:*
avaya call_management_system 17.0 cpe:2.3:a:avaya:call_management_system:17.0:r4:*:*:*:*:*:*
avaya call_management_system 17.0 cpe:2.3:a:avaya:call_management_system:17.0:r5:*:*:*:*:*:*
avaya call_management_system 17.0 cpe:2.3:a:avaya:call_management_system:17.0:r6:*:*:*:*:*:*
avaya iq 5.2.x cpe:2.3:a:avaya:iq:5.2.x:*:*:*:*:*:*:*
avaya cs1000e_firmware >= 7.0, <= 7.6 cpe:2.3:o:avaya:cs1000e_firmware:*:*:*:*:*:*:*:*
avaya cs1000m_firmware >= 7.0, <= 7.6 cpe:2.3:o:avaya:cs1000m_firmware:*:*:*:*:*:*:*:*
avaya cs1000e\/cs1000m_signaling_server_firmware >= 7.0, <= 7.6 cpe:2.3:o:avaya:cs1000e\/cs1000m_signaling_server_firmware:*:*:*:*:*:*:*:*
avaya aura_conferencing 7.0 cpe:2.3:a:avaya:aura_conferencing:7.0:*:*:*:*:*:*:*
avaya aura_conferencing 7.2 cpe:2.3:a:avaya:aura_conferencing:7.2:*:*:*:*:*:*:*
avaya aura_conferencing 8.0 cpe:2.3:a:avaya:aura_conferencing:8.0:-:*:*:*:*:*:*
avaya aura_conferencing 8.0 cpe:2.3:a:avaya:aura_conferencing:8.0:sp2:*:*:*:*:*:*
avaya aura_conferencing 8.0 cpe:2.3:a:avaya:aura_conferencing:8.0:sp4:*:*:*:*:*:*
avaya aura_conferencing 8.0 cpe:2.3:a:avaya:aura_conferencing:8.0:sp5:*:*:*:*:*:*
avaya aura_conferencing 8.0 cpe:2.3:a:avaya:aura_conferencing:8.0:sp7:*:*:*:*:*:*
avaya aura_conferencing 8.0 cpe:2.3:a:avaya:aura_conferencing:8.0:sp8:*:*:*:*:*:*
avaya aura_conferencing 8.0 cpe:2.3:a:avaya:aura_conferencing:8.0:sp9:*:*:*:*:*:*
avaya aura_experience_portal >= 6.0, <= 7.1 cpe:2.3:a:avaya:aura_experience_portal:*:*:*:*:*:*:*:*
avaya ip_office 8.1 cpe:2.3:a:avaya:ip_office:8.1:*:*:*:*:*:*:*
avaya ip_office 9.1 cpe:2.3:a:avaya:ip_office:9.1:-:*:*:*:*:*:*
avaya ip_office 9.1 cpe:2.3:a:avaya:ip_office:9.1:sp1:*:*:*:*:*:*
avaya ip_office 9.1 cpe:2.3:a:avaya:ip_office:9.1:sp10:*:*:*:*:*:*
avaya ip_office 9.1 cpe:2.3:a:avaya:ip_office:9.1:sp11:*:*:*:*:*:*
avaya ip_office 9.1 cpe:2.3:a:avaya:ip_office:9.1:sp12:*:*:*:*:*:*
avaya ip_office 9.1 cpe:2.3:a:avaya:ip_office:9.1:sp3:*:*:*:*:*:*
avaya ip_office 9.1 cpe:2.3:a:avaya:ip_office:9.1:sp4:*:*:*:*:*:*
avaya ip_office 9.1 cpe:2.3:a:avaya:ip_office:9.1:sp5:*:*:*:*:*:*
avaya ip_office 9.1 cpe:2.3:a:avaya:ip_office:9.1:sp6:*:*:*:*:*:*
avaya ip_office 9.1 cpe:2.3:a:avaya:ip_office:9.1:sp7:*:*:*:*:*:*
avaya ip_office 9.1 cpe:2.3:a:avaya:ip_office:9.1:sp8:*:*:*:*:*:*
avaya ip_office 9.1 cpe:2.3:a:avaya:ip_office:9.1:sp9:*:*:*:*:*:*
avaya ip_office 10.0 cpe:2.3:a:avaya:ip_office:10.0:-:*:*:*:*:*:*
avaya ip_office 10.0 cpe:2.3:a:avaya:ip_office:10.0:sp1:*:*:*:*:*:*
avaya ip_office 10.0 cpe:2.3:a:avaya:ip_office:10.0:sp2:*:*:*:*:*:*
avaya ip_office 10.0 cpe:2.3:a:avaya:ip_office:10.0:sp3:*:*:*:*:*:*
avaya ip_office 10.0 cpe:2.3:a:avaya:ip_office:10.0:sp4:*:*:*:*:*:*
avaya ip_office 10.0 cpe:2.3:a:avaya:ip_office:10.0:sp5:*:*:*:*:*:*
avaya ip_office 10.0 cpe:2.3:a:avaya:ip_office:10.0:sp6:*:*:*:*:*:*
avaya ip_office 10.0 cpe:2.3:a:avaya:ip_office:10.0:sp7:*:*:*:*:*:*
avaya aura_messaging 6.3 cpe:2.3:a:avaya:aura_messaging:6.3:*:*:*:*:*:*:*
avaya aura_messaging 6.3.3 cpe:2.3:a:avaya:aura_messaging:6.3.3:-:*:*:*:*:*:*
avaya aura_messaging 6.3.3 cpe:2.3:a:avaya:aura_messaging:6.3.3:sp4:*:*:*:*:*:*
avaya aura_messaging 6.3.3 cpe:2.3:a:avaya:aura_messaging:6.3.3:sp5:*:*:*:*:*:*
avaya aura_messaging 6.3.3 cpe:2.3:a:avaya:aura_messaging:6.3.3:sp6:*:*:*:*:*:*
avaya aura_session_manager >= 6.3, <= 6.3.18 cpe:2.3:a:avaya:aura_session_manager:*:*:*:*:*:*:*:*
avaya aura_session_manager 7.0 cpe:2.3:a:avaya:aura_session_manager:7.0:-:*:*:*:*:*:*
avaya aura_session_manager 7.0 cpe:2.3:a:avaya:aura_session_manager:7.0:sp1:*:*:*:*:*:*

References for CVE-2016-5285

cvelogic Threat Intelligence