Mozilla Network Security Services (NSS) before 3.15.4, as used in Mozilla Firefox before…
Priority LOW 27CWE-326Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Partial · None · None
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-326.
Summary
Mozilla Network Security Services (NSS) before 3.15.4, as used in Mozilla Firefox before 27.0, Firefox ESR 24.x before 24.3, Thunderbird before 24.3, SeaMonkey before 2.24, and other products, does not properly restrict public values in Diffie-Hellman key exchanges, which makes it easier for remote attackers to bypass cryptographic protection mechanisms in ticket handling by leveraging use of a certain value.
Why it matters now
EPSS 0.04601 91st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Red Hat: 3 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 23
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | before 24.3; before 27.0 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:network_security_services:*:*:*:*:*:*:*:* | before 3.15.4 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:* | before 2.24 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* | before 24.3.0 | Vulnerable | Mozilla |
| cpe:2.3:a:oracle:enterprise_manager_ops_center:*:*:*:*:*:*:*:* | before 12.1.4 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:enterprise_manager_ops_center:12.2.0:*:*:*:*:*:*:* | 12.2.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:enterprise_manager_ops_center:12.2.1:*:*:*:*:*:*:* | 12.2.1 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:enterprise_manager_ops_center:12.3.0:*:*:*:*:*:*:* | 12.3.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:vm_server:3.2:*:*:*:*:*:x86:* | 3.2 | Vulnerable | Oracle |
| cpe:2.3:o:fedoraproject:fedora:19:*:*:*:*:*:*:* | 19 | Vulnerable | Fedoraproject |
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 24.3; before 27.0 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:network_security_services:*:*:*:*:*:*:*:* Versions before 3.15.4 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:* Versions before 2.24 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 24.3.0 Vulnerable ·Mozilla
- cpe:2.3:a:oracle:enterprise_manager_ops_center:*:*:*:*:*:*:*:* Versions before 12.1.4 Vulnerable ·Oracle
- cpe:2.3:a:oracle:enterprise_manager_ops_center:12.2.0:*:*:*:*:*:*:* Versions 12.2.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:enterprise_manager_ops_center:12.2.1:*:*:*:*:*:*:* Versions 12.2.1 Vulnerable ·Oracle
- cpe:2.3:a:oracle:enterprise_manager_ops_center:12.3.0:*:*:*:*:*:*:* Versions 12.3.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:vm_server:3.2:*:*:*:*:*:x86:* Versions 3.2 Vulnerable ·Oracle
- cpe:2.3:o:fedoraproject:fedora:19:*:*:*:*:*:*:* Versions 19 Vulnerable ·Fedoraproject
Show 13 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:* | 20 | Vulnerable | Fedoraproject |
| cpe:2.3:o:opensuse:opensuse:11.4:*:*:*:*:*:*:* | 11.4 | Vulnerable | openSUSE |
| cpe:2.3:o:opensuse:opensuse:12.3:*:*:*:*:*:*:* | 12.3 | Vulnerable | openSUSE |
| cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* | 13.1 | Vulnerable | openSUSE |
| cpe:2.3:o:suse:linux_enterprise_desktop:11:sp3:*:*:*:*:*:* | 11 sp3 | Vulnerable | SUSE |
| cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:*:*:* | 11 sp3 | Vulnerable | SUSE |
| cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:vmware:*:* | 11 sp3 | Vulnerable | SUSE |
| cpe:2.3:o:suse:linux_enterprise_software_development_kit:11:sp3:*:*:*:*:*:* | 11 sp3 | Vulnerable | SUSE |
| cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* | 12.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:* | 12.10 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:* | 13.10 | Vulnerable | Canonical |
- cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:* Versions 20 Vulnerable ·Fedoraproject
- cpe:2.3:o:opensuse:opensuse:11.4:*:*:*:*:*:*:* Versions 11.4 Vulnerable ·openSUSE
- cpe:2.3:o:opensuse:opensuse:12.3:*:*:*:*:*:*:* Versions 12.3 Vulnerable ·openSUSE
- cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* Versions 13.1 Vulnerable ·openSUSE
- cpe:2.3:o:suse:linux_enterprise_desktop:11:sp3:*:*:*:*:*:* Versions 11 sp3 Vulnerable ·SUSE
- cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:*:*:* Versions 11 sp3 Vulnerable ·SUSE
- cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:vmware:*:* Versions 11 sp3 Vulnerable ·SUSE
- cpe:2.3:o:suse:linux_enterprise_software_development_kit:11:sp3:*:*:*:*:*:* Versions 11 sp3 Vulnerable ·SUSE
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* Versions 12.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:* Versions 12.10 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:* Versions 13.10 Vulnerable ·Canonical
Remediation
Red Hat 3 advisories
- RHSA-2014:1246 Released 2014-09-16 · Red Hat rating Moderatenss and nspr security, bug fix, and enhancement update
- Red Hat Enterprise Linux (v. 5 server) nss-3.16.1-2.el5, nss-3.16.1-2.el5.i386, nss-3.16.1-2.el5.ia64 +13
- Red Hat Enterprise Linux Desktop (v. 5 client) nss-3.16.1-2.el5, nss-3.16.1-2.el5.i386, nss-tools-3.16.1-2.el5 +1
- Red Hat Enterprise Linux Desktop Workstation (v. 5 client) nss-3.16.1-2.el5, nss-devel-3.16.1-2.el5, nss-devel-3.16.1-2.el5.i386 +2
- RHSA-2014:0979 Released 2014-07-29 · Red Hat rating Moderaterhev-hypervisor6 security and bug fix update
- RHEV Hypervisor for RHEL-6 rhev-hypervisor6-6.5-20140725.0.el6ev
- RHSA-2014:0917 Released 2014-07-22 · Red Hat rating Criticalnss and nspr security, bug fix, and enhancement update
- Red Hat Enterprise Linux Desktop (v. 6) nspr-4.10.6-1.el6_5, nss-3.16.1-4.el6_5, nss-sysinit-3.16.1-4.el6_5 +2
- Red Hat Enterprise Linux Desktop Optional (v. 6) nspr-4.10.6-1.el6_5, nspr-devel-4.10.6-1.el6_5, nss-3.16.1-4.el6_5 +4
- Red Hat Enterprise Linux HPC Node (v. 6) nspr-4.10.6-1.el6_5, nss-3.16.1-4.el6_5, nss-sysinit-3.16.1-4.el6_5 +2
- Red Hat Enterprise Linux HPC Node Optional (v. 6) nspr-4.10.6-1.el6_5, nspr-devel-4.10.6-1.el6_5, nss-3.16.1-4.el6_5 +4
- Red Hat Enterprise Linux Server (v. 6) nspr-4.10.6-1.el6_5, nspr-4.10.6-1.el6_5.ppc, nspr-devel-4.10.6-1.el6_5 +11
- Red Hat Enterprise Linux Server Optional (v. 6) nss-3.16.1-4.el6_5, nss-pkcs11-devel-3.16.1-4.el6_5, nss-pkcs11-devel-3.16.1-4.el6_5.ppc
- Red Hat Enterprise Linux Workstation (v. 6) nspr-4.10.6-1.el6_5, nspr-devel-4.10.6-1.el6_5, nss-3.16.1-4.el6_5 +5
- Red Hat Enterprise Linux Workstation Optional (v. 6) nss-3.16.1-4.el6_5, nss-pkcs11-devel-3.16.1-4.el6_5
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| RHEV Hypervisor for RHEL-6 | Fixed | RHSA-2014:0979 |
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2014:1246 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2014:1246 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2014:0917 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2014:0917 |
| Red Hat Enterprise Linux Desktop Workstation (v. 5 client) | Fixed | RHSA-2014:1246 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2014:0917 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2014:0917 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2014:0917 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2014:0917 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2014:0917 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2014:0917 |
Not affected: 1 product
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2014-1491
- 2026-10-03 Alias added: GHSA-v496-3mj8-fpc6
References
Advisory 19
- USN-2119-1
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- openSUSE-SU-2014:0212
- DSA-2994
- http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
- DSA-2858
- http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
- USN-2102-2
- GLSA-201504-01
- http://www.mozilla.org/security/announce/2014/mfsa2014-12.html
- http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761
- FEDORA-2014-2083
- openSUSE-SU-2014:0419
- http://www.oracle.com/technetwork/topics/security/cpuoct2014-1972960.html
- FEDORA-2014-2041
- SUSE-SU-2014:0248
- openSUSE-SU-2014:0213
- USN-2102-1
Sources
- CVE-2014-1491 · CVE Program
- CVE-2014-1491 · NVD
- FIRST EPSS
- GHSA-v496-3mj8-fpc6 · GitHub Advisory Database · CC BY 4.0
- CVE-2014-1491 · Red Hat security data · CC BY 4.0
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