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Fencer Intel
high 8.8

CVE-2016-2834 json

Mozilla Network Security Services (NSS) before 3.23, as used in Mozilla Firefox before 47.0, allows remote attackers to cause a denial of s…

published 2016-06-13 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-3907

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.4%
EPSS 3.4% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

Mozilla Network Security Services (NSS) before 3.23, as used in Mozilla Firefox before 47.0, allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly have unspecified other impact via unknown vectors.

Patch / fix

  • nss Debian 14, Debian 13, Debian 12 2:3.23-1

debian advisories DEBIAN-CVE-2016-2834

  • nss Ubuntu 14.04 LTS 2:3.23-0ubuntu0.14.04.1
  • nss Ubuntu 16.04 LTS 2:3.23-0ubuntu0.16.04.1
  • firefox Ubuntu 14.04 LTS 47.0+build3-0ubuntu0.14.04.1
  • firefox Ubuntu 16.04 LTS 47.0+build3-0ubuntu0.16.04.1
  • thunderbird Ubuntu 14.04 LTS 1:52.4.0+build1-0ubuntu0.14.04.2
  • thunderbird Ubuntu 16.04 LTS 1:52.4.0+build1-0ubuntu0.16.04.2

ubuntu advisories UBUNTU-CVE-2016-2834

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • nss RHEL 5 3.21.3-2.el5_11
  • nss RHEL 6 3.21.3-2.el6_8
  • nss RHEL 7 3.21.3-2.el7_3
  • nss-util RHEL 6 3.21.3-1.el6_8
  • nss-util RHEL 7 3.21.3-1.1.el7_3
  • nss-tools RHEL 5 3.21.3-2.el5_11
  • nss-tools RHEL 6 3.21.3-2.el6_8
  • nss-tools RHEL 7 3.21.3-2.el7_3

red hat advisories RHSA-2016:2779

  • java-1_8_0-openjdk SLES for SAP 12 SP2, SLES for SAP 12 SP1, SLES for Raspberry Pi 12 SP2 +4 more 1.8.0.121-23.4
  • mozilla-nss SLES for SAP 12 SP2, SLES for SAP 12 SP1, SLES for SAP 12 +8 more 3.29.5-57.1
  • mozilla-nspr SLES for SAP 12 SP2, SLES for SAP 12 SP1, SLES for SAP 12 +8 more 4.13.1-18.1
  • MozillaFirefox SLES for SAP 12 SP2, SLES for SAP 12 SP1, SLES for SAP 12 +8 more 45.9.0esr-105.1
  • mozilla-nspr SLES for SAP 11 SP4, SLES 11 SP4, SLES 11 SP3-TERADATA +6 more 4.13.1-32.1
  • mozilla-nss SLES for SAP 11 SP4, SLES 11 SP4, SLES 11 SP3-TERADATA +6 more 3.29.5-46.1
  • MozillaFirefox SLES for SAP 11 SP4, SLES 11 SP4, SLES 11 SP3-TERADATA +6 more 45.9.0esr-71.2
  • mozilla-nss SLES for SAP 11 SP4, SLES 11 SP4, SLES 11 SP3-TERADATA +6 more 3.21.1-35.1

suse advisories SUSE-SU-2017:1248-1SUSE-SU-2017:1175-1SUSE-SU-2016:2061-1SUSE-SU-2016:1799-1SUSE-SU-2016:1691-1

  • firefox-esr openSUSE Tumbleweed 128.5.1-1.1
  • MozillaFirefox openSUSE Tumbleweed 50.1.0-1.1
  • mozilla-nss openSUSE Tumbleweed 3.26.2-1.1

opensuse advisories openSUSE-SU-2024:14572-1openSUSE-SU-2024:10071-1openSUSE-SU-2024:10451-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-2834 updated cvss 5.1

nss: Multiple security flaws (MFSA 2016-61)

  • Red Hat Enterprise Linux (v. 5 server) nss 3.21.3-2.el5_11, nss-tools 3.21.3-2.el5_11 Red Hat Enterprise Linux Client (v. 7) nss 3.21.3-2.el7_3, nss-tools 3.21.3-2.el7_3, nss-util 3.21.3-1.1.el7_3, nss-sysinit 3.21.3-2.el7_3 Red Hat Enterprise Linux Client Optional (v. 7) nss-devel 3.21.3-2.el7_3, nss-debuginfo 3.21.3-2.el7_3, nss-pkcs11-devel 3.21.3-2.el7_3, nss-util-devel 3.21.3-1.1.el7_3, nss-util-debuginfo 3.21.3-1.1.el7_3 Red Hat Enterprise Linux ComputeNode (v. 7) nss 3.21.3-2.el7_3, nss-tools 3.21.3-2.el7_3, nss-util 3.21.3-1.1.el7_3, nss-sysinit 3.21.3-2.el7_3 Red Hat Enterprise Linux ComputeNode Optional (v. 7) nss-devel 3.21.3-2.el7_3, nss-debuginfo 3.21.3-2.el7_3, nss-pkcs11-devel 3.21.3-2.el7_3, nss-util-devel 3.21.3-1.1.el7_3, nss-util-debuginfo 3.21.3-1.1.el7_3 Red Hat Enterprise Linux Desktop (v. 5 client) nss 3.21.3-2.el5_11, nss-tools 3.21.3-2.el5_11
    +13 more products
    Red Hat Enterprise Linux Desktop (v. 6) nss 3.21.3-2.el6_8, nss-util 3.21.3-1.el6_8, nss-tools 3.21.3-2.el6_8, nss-sysinit 3.21.3-2.el6_8 Red Hat Enterprise Linux Desktop Optional (v. 6) nss-devel 3.21.3-2.el6_8, nss-debuginfo 3.21.3-2.el6_8, nss-util-devel 3.21.3-1.el6_8, nss-pkcs11-devel 3.21.3-2.el6_8, nss-util-debuginfo 3.21.3-1.el6_8 Red Hat Enterprise Linux Desktop Workstation (v. 5 client) nss 3.21.3-2.el5_11 Red Hat Enterprise Linux HPC Node (v. 6) nss 3.21.3-2.el6_8, nss-util 3.21.3-1.el6_8, nss-tools 3.21.3-2.el6_8, nss-sysinit 3.21.3-2.el6_8 Red Hat Enterprise Linux HPC Node Optional (v. 6) nss-devel 3.21.3-2.el6_8, nss-debuginfo 3.21.3-2.el6_8, nss-util-devel 3.21.3-1.el6_8, nss-pkcs11-devel 3.21.3-2.el6_8, nss-util-debuginfo 3.21.3-1.el6_8 Red Hat Enterprise Linux Server (v. 6) nss 3.21.3-2.el6_8, nss-util 3.21.3-1.el6_8, nss-tools 3.21.3-2.el6_8, nss-sysinit 3.21.3-2.el6_8 Red Hat Enterprise Linux Server (v. 7) nss 3.21.3-2.el7_3, nss-tools 3.21.3-2.el7_3, nss-util 3.21.3-1.1.el7_3, nss-sysinit 3.21.3-2.el7_3 Red Hat Enterprise Linux Server Optional (v. 6) nss-debuginfo 3.21.3-2.el6_8, nss-pkcs11-devel 3.21.3-2.el6_8 Red Hat Enterprise Linux Server Optional (v. 7) nss-debuginfo 3.21.3-2.el7_3, nss-pkcs11-devel 3.21.3-2.el7_3 Red Hat Enterprise Linux Workstation (v. 6) nss 3.21.3-2.el6_8, nss-util 3.21.3-1.el6_8, nss-tools 3.21.3-2.el6_8, nss-sysinit 3.21.3-2.el6_8 Red Hat Enterprise Linux Workstation (v. 7) nss 3.21.3-2.el7_3, nss-tools 3.21.3-2.el7_3, nss-util 3.21.3-1.1.el7_3, nss-sysinit 3.21.3-2.el7_3 Red Hat Enterprise Linux Workstation Optional (v. 6) nss-debuginfo 3.21.3-2.el6_8, nss-pkcs11-devel 3.21.3-2.el6_8 Red Hat Enterprise Linux Workstation Optional (v. 7) nss-debuginfo 3.21.3-2.el7_3, nss-pkcs11-devel 3.21.3-2.el7_3
    fixed: vendor fix “Do not use NSS to parse untrusted certificates.” RHSA-2016:2779

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.38% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.