Description
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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | nss | 2:3.23-1 | — |
| Debian 13 | nss | 2:3.23-1 | — |
| Debian 12 | nss | 2:3.23-1 | — |
| Debian 8 | nss | 2:3.26-1+debu8u1 | DSA-3688-1 |
| Debian 7 | nss | 2:3.14.5-1+deb7u8 | DLA-527-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | firefox | 47.0+build3-0ubuntu0.16.04.1 | USN-2993-1 |
| Ubuntu 16.04 LTS | nss | 2:3.23-0ubuntu0.16.04.1 | USN-3029-1 |
| Ubuntu 16.04 LTS | thunderbird | 1:52.4.0+build1-0ubuntu0.16.04.2 | — |
| Ubuntu 14.04 LTS | firefox | 47.0+build3-0ubuntu0.14.04.1 | USN-2993-1 |
| Ubuntu 14.04 LTS | nss | 2:3.23-0ubuntu0.14.04.1 | USN-3029-1 |
| Ubuntu 14.04 LTS | thunderbird | 1:52.4.0+build1-0ubuntu0.14.04.2 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | nss +4 | 3.21.3-2.el7_3 | RHSA-2016:2779 |
| RHEL 7 | nss-util +1 | 3.21.3-1.1.el7_3 | RHSA-2016:2779 |
| RHEL 6 | nss +4 | 3.21.3-2.el6_8 | RHSA-2016:2779 |
| RHEL 6 | nss-util +1 | 3.21.3-1.el6_8 | RHSA-2016:2779 |
| RHEL 5 | nss +3 | 3.21.3-2.el5_11 | RHSA-2016:2779 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | MozillaFirefox | 45.9.0esr-105.1 | SUSE-SU-2017:1248-1 |
| SLES 12 SP2 | java-1_8_0-openjdk | 1.8.0.121-23.4 | SUSE-SU-2017:1248-1 |
| SLES 12 SP2 | mozilla-nspr | 4.13.1-18.1 | SUSE-SU-2017:1248-1 |
| SLES 12 SP2 | mozilla-nss | 3.29.5-57.1 | SUSE-SU-2017:1248-1 |
| SLES 12 SP1 | MozillaFirefox | 45.2.0esr-75.2 | SUSE-SU-2017:1248-1, SUSE-SU-2016:1691-1 |
| SLES 12 SP1 | MozillaFirefox-branding-SLE | 45.0-28.2 | SUSE-SU-2016:1691-1 |
| SLES 12 SP1 | java-1_8_0-openjdk | 1.8.0.121-23.4 | SUSE-SU-2017:1248-1 |
| SLES 12 SP1 | mozilla-nspr | 4.12-15.2 | SUSE-SU-2017:1248-1, SUSE-SU-2016:1691-1 |
| SLES 12 SP1 | mozilla-nss | 3.21.1-46.2 | SUSE-SU-2017:1248-1, SUSE-SU-2016:1691-1 |
| SLES 12 | MozillaFirefox | 45.2.0esr-75.2 | SUSE-SU-2017:1248-1, SUSE-SU-2016:1691-1 |
| SLES 12 | MozillaFirefox-branding-SLE | 45.0-28.2 | SUSE-SU-2016:1691-1 |
| SLES 12 | mozilla-nspr | 4.12-15.2 | SUSE-SU-2017:1248-1, SUSE-SU-2016:1691-1 |
| SLES 12 | mozilla-nss | 3.21.1-46.2 | SUSE-SU-2017:1248-1, SUSE-SU-2016:1691-1 |
| SLES 11 SP4 | MozillaFirefox | 45.2.0esr-45.2 | SUSE-SU-2017:1175-1, SUSE-SU-2016:1799-1 |
| SLES 11 SP4 | MozillaFirefox-branding-SLED | 45.0-23.10 | SUSE-SU-2016:1799-1 |
| SLES 11 SP4 | firefox-fontconfig | 2.11.0-2.1 | SUSE-SU-2016:1799-1 |
| SLES 11 SP4 | mozilla-nspr | 4.12-29.1 | SUSE-SU-2017:1175-1, SUSE-SU-2016:1799-1 |
| SLES 11 SP4 | mozilla-nss | 3.21.1-35.1 | SUSE-SU-2017:1175-1, SUSE-SU-2016:1799-1 |
| SLES 11 SP3 | MozillaFirefox | 45.2.0esr-45.2 | SUSE-SU-2017:1175-1, SUSE-SU-2016:1799-1 |
| SLES 11 SP3 | MozillaFirefox-branding-SLED | 45.0-23.10 | SUSE-SU-2016:1799-1 |
| SLES 11 SP3 | firefox-fontconfig | 2.11.0-2.1 | SUSE-SU-2016:1799-1 |
| SLES 11 SP3 | mozilla-nspr | 4.12-29.1 | SUSE-SU-2017:1175-1, SUSE-SU-2016:1799-1 |
| SLES 11 SP3 | mozilla-nss | 3.21.1-35.1 | SUSE-SU-2017:1175-1, SUSE-SU-2016:1799-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP2 | MozillaFirefox | 45.3.0esr-48.1 | SUSE-SU-2016:2061-1 |
| SLES 11 SP2 | MozillaFirefox-branding-SLED | 45.0-20.38 | SUSE-SU-2016:2061-1 |
| SLES 11 SP2 | firefox-fontconfig | 2.11.0-4.2 | SUSE-SU-2016:2061-1 |
| SLES 11 SP2 | mozilla-nspr | 4.12-25.2 | SUSE-SU-2016:2061-1 |
| SLES 11 SP2 | mozilla-nss | 3.21.1-26.2 | SUSE-SU-2016:2061-1 |
| SLES for SAP 12 SP2 | MozillaFirefox | 45.9.0esr-105.1 | SUSE-SU-2017:1248-1 |
| SLES for SAP 12 SP2 | java-1_8_0-openjdk | 1.8.0.121-23.4 | SUSE-SU-2017:1248-1 |
| SLES for SAP 12 SP2 | mozilla-nspr | 4.13.1-18.1 | SUSE-SU-2017:1248-1 |
| SLES for SAP 12 SP2 | mozilla-nss | 3.29.5-57.1 | SUSE-SU-2017:1248-1 |
| SLES for SAP 12 SP1 | MozillaFirefox | 45.2.0esr-75.2 | SUSE-SU-2017:1248-1, SUSE-SU-2016:1691-1 |
| SLES for SAP 12 SP1 | MozillaFirefox-branding-SLE | 45.0-28.2 | SUSE-SU-2016:1691-1 |
| SLES for SAP 12 SP1 | java-1_8_0-openjdk | 1.8.0.121-23.4 | SUSE-SU-2017:1248-1 |
| SLES for SAP 12 SP1 | mozilla-nspr | 4.12-15.2 | SUSE-SU-2017:1248-1, SUSE-SU-2016:1691-1 |
| SLES for SAP 12 SP1 | mozilla-nss | 3.21.1-46.2 | SUSE-SU-2017:1248-1, SUSE-SU-2016:1691-1 |
| SLES for SAP 12 | MozillaFirefox | 45.2.0esr-75.2 | SUSE-SU-2017:1248-1, SUSE-SU-2016:1691-1 |
| SLES for SAP 12 | MozillaFirefox-branding-SLE | 45.0-28.2 | SUSE-SU-2016:1691-1 |
| SLES for SAP 12 | mozilla-nspr | 4.12-15.2 | SUSE-SU-2017:1248-1, SUSE-SU-2016:1691-1 |
| SLES for SAP 12 | mozilla-nss | 3.21.1-46.2 | SUSE-SU-2017:1248-1, SUSE-SU-2016:1691-1 |
| SLES for SAP 11 SP4 | MozillaFirefox | 45.2.0esr-45.2 | SUSE-SU-2017:1175-1, SUSE-SU-2016:1799-1 |
| SLES for SAP 11 SP4 | MozillaFirefox-branding-SLED | 45.0-23.10 | SUSE-SU-2016:1799-1 |
| SLES for SAP 11 SP4 | firefox-fontconfig | 2.11.0-2.1 | SUSE-SU-2016:1799-1 |
| SLES for SAP 11 SP4 | mozilla-nspr | 4.12-29.1 | SUSE-SU-2017:1175-1, SUSE-SU-2016:1799-1 |
| SLES for SAP 11 SP4 | mozilla-nss | 3.21.1-35.1 | SUSE-SU-2017:1175-1, SUSE-SU-2016:1799-1 |
| SUSE OpenStack Cloud 5 | MozillaFirefox | 45.2.0esr-45.2 | SUSE-SU-2017:1175-1, SUSE-SU-2016:1799-1 |
| SUSE OpenStack Cloud 5 | MozillaFirefox-branding-SLED | 45.0-23.10 | SUSE-SU-2016:1799-1 |
| SUSE OpenStack Cloud 5 | firefox-fontconfig | 2.11.0-2.1 | SUSE-SU-2016:1799-1 |
| SUSE OpenStack Cloud 5 | mozilla-nspr | 4.12-29.1 | SUSE-SU-2017:1175-1, SUSE-SU-2016:1799-1 |
| SUSE OpenStack Cloud 5 | mozilla-nss | 3.21.1-35.1 | SUSE-SU-2017:1175-1, SUSE-SU-2016:1799-1 |
| SUSE Manager Proxy 2.1 | MozillaFirefox | 45.2.0esr-45.2 | SUSE-SU-2017:1175-1, SUSE-SU-2016:1799-1 |
| SUSE Manager Proxy 2.1 | MozillaFirefox-branding-SLED | 45.0-23.10 | SUSE-SU-2016:1799-1 |
| SUSE Manager Proxy 2.1 | firefox-fontconfig | 2.11.0-2.1 | SUSE-SU-2016:1799-1 |
| SUSE Manager Proxy 2.1 | mozilla-nspr | 4.12-29.1 | SUSE-SU-2017:1175-1, SUSE-SU-2016:1799-1 |
| SUSE Manager Proxy 2.1 | mozilla-nss | 3.21.1-35.1 | SUSE-SU-2017:1175-1, SUSE-SU-2016:1799-1 |
| SUSE Manager 2.1 | MozillaFirefox | 45.2.0esr-45.2 | SUSE-SU-2017:1175-1, SUSE-SU-2016:1799-1 |
| SUSE Manager 2.1 | MozillaFirefox-branding-SLED | 45.0-23.10 | SUSE-SU-2016:1799-1 |
| SUSE Manager 2.1 | firefox-fontconfig | 2.11.0-2.1 | SUSE-SU-2016:1799-1 |
| SUSE Manager 2.1 | mozilla-nspr | 4.12-29.1 | SUSE-SU-2017:1175-1, SUSE-SU-2016:1799-1 |
| SUSE Manager 2.1 | mozilla-nss | 3.21.1-35.1 | SUSE-SU-2017:1175-1, SUSE-SU-2016:1799-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | MozillaFirefox | 45.2.0esr-45.2 | SUSE-SU-2017:1175-1, SUSE-SU-2016:1799-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | MozillaFirefox-branding-SLED | 45.0-23.10 | SUSE-SU-2016:1799-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | firefox-fontconfig | 2.11.0-2.1 | SUSE-SU-2016:1799-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | mozilla-nspr | 4.12-29.1 | SUSE-SU-2017:1175-1, SUSE-SU-2016:1799-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | mozilla-nss | 3.21.1-35.1 | SUSE-SU-2017:1175-1, SUSE-SU-2016:1799-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 50.1.0-1.1 | openSUSE-SU-2024:10071-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
| openSUSE Tumbleweed | mozilla-nss | 3.26.2-1.1 | openSUSE-SU-2024:10451-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | nss +4 | 3.21.3-2.0.1.el7_3 | ELSA-2016-2779 |
| Oracle Linux 7 | nss-util +1 | 3.21.3-1.1.el7_3 | ELSA-2016-2779 |
Advisories 14
- RHSA-2016:2779 Red Hat Security Advisory: nss and nss-util security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- USN-3029-1 nss vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-2993-1 firefox vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-527-1 nss - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3688-1 nss - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10451-1 libfreebl3-3.26.2-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:1175-1 Security update for MozillaFirefox, mozilla-nss, mozilla-nspr SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:2061-1 Security update for MozillaFirefox, MozillaFirefox-branding-SLED, mozilla-nspr and mozilla-nss SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1799-1 Security update for MozillaFirefox, MozillaFirefox-branding-SLE and mozilla-nss SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:1248-1 Security update for MozillaFirefox, mozilla-nss, mozilla-nspr, java-1_8_0-openjdk SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14572-1 firefox-esr-128.5.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1691-1 Security update for MozillaFirefox, MozillaFirefox-branding-SLE, mozilla-nspr, mozilla-nss SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10071-1 MozillaFirefox-50.1.0-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
- ELSA-2016-2779 Moderate: nss and nss-util security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 16, 2016
References
- 1036057 vdb-entry
- DSA-3688 vendor-advisory
- openSUSE-SU-2016:1557 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1241034
- RHSA-2016:2779 vendor-advisory
- http://www.mozilla.org/security/announce/2016/mfsa2016-61.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=1221620
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.23_release_notes
- USN-3029-1 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1206283
- 91072 vdb-entry
- openSUSE-SU-2016:1552 vendor-advisory
- USN-2993-1 vendor-advisory
- SUSE-SU-2016:1691 vendor-advisory
- http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=1241037