Description
In Network Security Services (NSS) before 3.36.7 and before 3.41.1, a malformed signature can cause a crash due to a null dereference, resulting in a Denial of Service.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mozilla | NSS | unspecified – < 3.41.1, unspecified – < 3.36.7 | 3.41.1 |
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 | 2:3.42.1-1 | — |
| Debian 13 | nss | 2:3.42.1-1 | — |
| Debian 12 | nss | 2:3.42.1-1 | — |
| Debian 9 | nss | 2:3.26.2-1.1+deb9u2 | DLA-2388-1 |
| Debian 8 | nss | 2:3.26-1+debu8u4 | DLA-1704-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | nss | 2:3.35-2ubuntu2.2 | USN-3898-1 |
| Ubuntu 16.04 LTS | nss | 2:3.28.4-0ubuntu0.16.04.5 | USN-3898-1 |
| Ubuntu 14.04 LTS | nss | 2:3.28.4-0ubuntu0.14.04.5 | USN-3898-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | nspr +1 | 4.21.0-2.el8_0 | RHSA-2019:1951 |
| RHEL 8 | nss +9 | 3.44.0-7.el8_0 | RHSA-2019:1951 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | mozilla-nspr | 4.23-3.9.1 | SUSE-SU-2019:3395-1 |
| SLES 15 SP1 | mozilla-nss | 3.47.1-3.22.1 | SUSE-SU-2019:3395-1 |
| SLES 15 | mozilla-nspr | 4.23-3.9.1 | SUSE-SU-2019:3395-1 |
| SLES 15 | mozilla-nss | 3.47.1-3.22.1 | SUSE-SU-2019:3395-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.1 | mozilla-nspr | 4.23-lp151.2.6.1 | openSUSE-SU-2020:0008-1 |
| openSUSE Leap 15.1 | mozilla-nss | 3.47.1-lp151.2.9.1 | openSUSE-SU-2020:0008-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | nspr +1 | 4.21.0-2.el8_0 | ELSA-2019-1951 |
| Oracle Linux 8 | nss +9 | 3.44.0-7.el8_0 | ELSA-2019-1951 |
Advisories 8
- RHSA-2019:1951 Red Hat Security Advisory: nss and nspr security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- USN-3898-1 nss vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-1704-1 nss - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2388-1 nss - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2019:3395-1 Security update for mozilla-nspr, mozilla-nss SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:0008-1 Security update for mozilla-nspr, mozilla-nss SUSE / openSUSE Security Updates · Feb 4, 2026
- ICSA-21-040-04 Siemens RUGGEDCOM ROX II CISA ICS & IT advisories · Feb 9, 2021
- ELSA-2019-1951 Moderate: nss and nspr security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Aug 5, 2019