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TI-2016-01784 Aliases CVE-2016-1950GHSA-8cv9-944x-284m

Heap-based buffer overflow in Mozilla Network Security Services (NSS) before 3.19.2.3 and…

Priority MEDIUM 45CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.

Summary

Heap-based buffer overflow in Mozilla Network Security Services (NSS) before 3.19.2.3 and 3.20.x and 3.21.x before 3.21.1, as used in Mozilla Firefox before 45.0 and Firefox ESR 38.x before 38.7, allows remote attackers to execute arbitrary code via crafted ASN.1 data in an X.509 certificate.

Why it matters now

EPSS 0.04192 90th percentileScored 2026-11-07
Fix Fixed Red Hat: 3 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 30

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:network_security_services:3.19.2:*:*:*:*:*:*:*3.19.2VulnerableMozilla
cpe:2.3:a:mozilla:network_security_services:3.20:*:*:*:*:*:*:*3.20VulnerableMozilla
cpe:2.3:a:mozilla:network_security_services:3.20.1:*:*:*:*:*:*:*3.20.1VulnerableMozilla
cpe:2.3:a:mozilla:network_security_services:3.21:*:*:*:*:*:*:*3.21VulnerableMozilla
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*up to 44.0.2VulnerableMozilla
cpe:2.3:a:mozilla:firefox:38.0:*:*:*:*:*:*:*38.0VulnerableMozilla
cpe:2.3:a:mozilla:firefox:38.0.1:*:*:*:*:*:*:*38.0.1VulnerableMozilla
cpe:2.3:a:mozilla:firefox:38.0.5:*:*:*:*:*:*:*38.0.5VulnerableMozilla
cpe:2.3:a:mozilla:firefox:38.1.0:*:*:*:*:*:*:*38.1.0VulnerableMozilla
cpe:2.3:a:mozilla:firefox:38.1.1:*:*:*:*:*:*:*38.1.1VulnerableMozilla
  • cpe:2.3:a:mozilla:network_security_services:3.19.2:*:*:*:*:*:*:* Versions 3.19.2 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:network_security_services:3.20:*:*:*:*:*:*:* Versions 3.20 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:network_security_services:3.20.1:*:*:*:*:*:*:* Versions 3.20.1 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:network_security_services:3.21:*:*:*:*:*:*:* Versions 3.21 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions up to 44.0.2 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox:38.0:*:*:*:*:*:*:* Versions 38.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox:38.0.1:*:*:*:*:*:*:* Versions 38.0.1 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox:38.0.5:*:*:*:*:*:*:* Versions 38.0.5 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox:38.1.0:*:*:*:*:*:*:* Versions 38.1.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox:38.1.1:*:*:*:*:*:*:* Versions 38.1.1 Vulnerable ·Mozilla
Show 20 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:38.2.0:*:*:*:*:*:*:*38.2.0VulnerableMozilla
cpe:2.3:a:mozilla:firefox:38.2.1:*:*:*:*:*:*:*38.2.1VulnerableMozilla
cpe:2.3:a:mozilla:firefox:38.3.0:*:*:*:*:*:*:*38.3.0VulnerableMozilla
cpe:2.3:a:mozilla:firefox:38.4.0:*:*:*:*:*:*:*38.4.0VulnerableMozilla
cpe:2.3:a:mozilla:firefox:38.5.0:*:*:*:*:*:*:*38.5.0VulnerableMozilla
cpe:2.3:a:mozilla:firefox:38.5.1:*:*:*:*:*:*:*38.5.1VulnerableMozilla
cpe:2.3:a:mozilla:firefox:38.6.0:*:*:*:*:*:*:*38.6.0VulnerableMozilla
cpe:2.3:a:mozilla:firefox:38.6.1:*:*:*:*:*:*:*38.6.1VulnerableMozilla
cpe:2.3:o:oracle:linux:5.0:*:*:*:*:*:*:*5.0VulnerableOracle
cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:*6VulnerableOracle
cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*7VulnerableOracle
cpe:2.3:o:oracle:vm_server:3.2:*:*:*:*:*:*:*3.2VulnerableOracle
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*up to 9.2.1VulnerableApple
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*up to 10.11.3VulnerableApple
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*up to 9.1VulnerableApple
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*up to 2.1VulnerableApple
cpe:2.3:a:oracle:glassfish_server:2.1.1:*:*:*:*:*:*:*2.1.1VulnerableOracle
cpe:2.3:a:oracle:iplanet_web_proxy_server:4.0:*:*:*:*:*:*:*4.0VulnerableOracle
cpe:2.3:a:oracle:iplanet_web_server:7.0:*:*:*:*:*:*:*7.0VulnerableOracle
cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*13.1VulnerableopenSUSE
  • cpe:2.3:a:mozilla:firefox:38.2.0:*:*:*:*:*:*:* Versions 38.2.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox:38.2.1:*:*:*:*:*:*:* Versions 38.2.1 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox:38.3.0:*:*:*:*:*:*:* Versions 38.3.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox:38.4.0:*:*:*:*:*:*:* Versions 38.4.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox:38.5.0:*:*:*:*:*:*:* Versions 38.5.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox:38.5.1:*:*:*:*:*:*:* Versions 38.5.1 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox:38.6.0:*:*:*:*:*:*:* Versions 38.6.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox:38.6.1:*:*:*:*:*:*:* Versions 38.6.1 Vulnerable ·Mozilla
  • cpe:2.3:o:oracle:linux:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Oracle
  • cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:* Versions 6 Vulnerable ·Oracle
  • cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:* Versions 7 Vulnerable ·Oracle
  • cpe:2.3:o:oracle:vm_server:3.2:*:*:*:*:*:*:* Versions 3.2 Vulnerable ·Oracle
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions up to 9.2.1 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions up to 10.11.3 Vulnerable ·Apple
  • cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions up to 9.1 Vulnerable ·Apple
  • cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions up to 2.1 Vulnerable ·Apple
  • cpe:2.3:a:oracle:glassfish_server:2.1.1:*:*:*:*:*:*:* Versions 2.1.1 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:iplanet_web_proxy_server:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:iplanet_web_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Oracle
  • cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* Versions 13.1 Vulnerable ·openSUSE

Remediation

Red Hat 3 advisories

  • RHSA-2016:0495 Released 2016-03-23 · Red Hat rating Critical
    nss-util security update
    • Red Hat Enterprise Linux ComputeNode EUS (v. 7.1) nss-util-3.19.1-5.el7_1
    • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.1) nss-util-devel-3.19.1-5.el7_1
    • Red Hat Enterprise Linux HPC Node EUS (v. 6.6) nss-util-3.19.1-3.el6_6
    • Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.6) nss-util-devel-3.19.1-3.el6_6
    • Red Hat Enterprise Linux Server AUS (v. 6.2) nss-util-3.13.1-10.el6_2, nss-util-devel-3.13.1-10.el6_2
    • Red Hat Enterprise Linux Server AUS (v. 6.4) nss-util-3.14.3-8.el6_4, nss-util-devel-3.14.3-8.el6_4
    • Red Hat Enterprise Linux Server AUS (v. 6.5) nss-util-3.16.1-4.el6_5, nss-util-devel-3.16.1-4.el6_5
    • Red Hat Enterprise Linux Server EUS (v. 6.6) nss-util-3.19.1-3.el6_6, nss-util-3.19.1-3.el6_6.ppc, nss-util-devel-3.19.1-3.el6_6 +1
    • Red Hat Enterprise Linux Server EUS (v. 7.1) nss-util-3.19.1-5.ael7b_1, nss-util-3.19.1-5.el7_1, nss-util-3.19.1-5.el7_1.ppc +3
  • RHSA-2016:0370 Released 2016-03-09 · Red Hat rating Critical
    nss-util security update
    • Red Hat Enterprise Linux Client (v. 7) nss-util-3.19.1-9.el7_2
    • Red Hat Enterprise Linux Client Optional (v. 7) nss-util-devel-3.19.1-9.el7_2
    • Red Hat Enterprise Linux ComputeNode (v. 7) nss-util-3.19.1-9.el7_2
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) nss-util-devel-3.19.1-9.el7_2
    • Red Hat Enterprise Linux Desktop (v. 6) nss-util-3.19.1-5.el6_7
    • Red Hat Enterprise Linux Desktop Optional (v. 6) nss-util-devel-3.19.1-5.el6_7
    • Red Hat Enterprise Linux HPC Node (v. 6) nss-util-3.19.1-5.el6_7
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) nss-util-devel-3.19.1-5.el6_7
    • Red Hat Enterprise Linux Server (v. 6) nss-util-3.19.1-5.el6_7, nss-util-3.19.1-5.el6_7.ppc, nss-util-devel-3.19.1-5.el6_7 +1
    • Red Hat Enterprise Linux Server (v. 7) nss-util-3.19.1-9.el7_2, nss-util-3.19.1-9.el7_2.ppc, nss-util-devel-3.19.1-9.el7_2 +1
    • Red Hat Enterprise Linux Workstation (v. 6) nss-util-3.19.1-5.el6_7, nss-util-devel-3.19.1-5.el6_7
    • Red Hat Enterprise Linux Workstation (v. 7) nss-util-3.19.1-9.el7_2, nss-util-devel-3.19.1-9.el7_2
  • RHSA-2016:0371 Released 2016-03-09 · Red Hat rating Critical
    nss security update
    • Red Hat Enterprise Linux (v. 5 server) nss-3.19.1-4.el5_11, nss-3.19.1-4.el5_11.i386, nss-3.19.1-4.el5_11.ia64 +13
    • Red Hat Enterprise Linux Desktop (v. 5 client) nss-3.19.1-4.el5_11, nss-3.19.1-4.el5_11.i386, nss-tools-3.19.1-4.el5_11 +1
    • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) nss-3.19.1-4.el5_11, nss-devel-3.19.1-4.el5_11, nss-devel-3.19.1-4.el5_11.i386 +2

Vendor assessments

Red Hat

Red Hat rating: Critical. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2016:0371
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2016:0370
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2016:0370
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2016:0370
Red Hat Enterprise Linux ComputeNode EUS (v. 7.1)Fixed RHSA-2016:0495
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2016:0370
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.1)Fixed RHSA-2016:0495
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2016:0371
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2016:0370
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2016:0370
Red Hat Enterprise Linux Desktop Workstation (v. 5 client)Fixed RHSA-2016:0371
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2016:0370
Red Hat Enterprise Linux HPC Node EUS (v. 6.6)Fixed RHSA-2016:0495
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2016:0370
Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.6)Fixed RHSA-2016:0495
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2016:0370
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2016:0370
Red Hat Enterprise Linux Server AUS (v. 6.2)Fixed RHSA-2016:0495
Red Hat Enterprise Linux Server AUS (v. 6.4)Fixed RHSA-2016:0495
Red Hat Enterprise Linux Server AUS (v. 6.5)Fixed RHSA-2016:0495
Red Hat Enterprise Linux Server EUS (v. 6.6)Fixed RHSA-2016:0495
Red Hat Enterprise Linux Server EUS (v. 7.1)Fixed RHSA-2016:0495
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2016:0370
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2016:0370

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-1950
  2. 2026-10-03 Alias added: GHSA-8cv9-944x-284m

References

Advisory 29

Other 6

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences