Description
A cached side channel attack during handshakes using RSA encryption could allow for the decryption of encrypted content. This is a variant of the Adaptive Chosen Ciphertext attack (AKA Bleichenbacher attack) and affects all NSS versions prior to NSS 3.41.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mozilla | Network Security Services (NSS) | All versions prior to NSS 3.41 | — |
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 | 2:3.41-1 | — |
| Debian 13 | nss | 2:3.41-1 | — |
| Debian 12 | nss | 2:3.41-1 | — |
| 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 | 2:3.35-2ubuntu2.1 | USN-3850-1 |
| Ubuntu 16.04 LTS | nss | 2:3.28.4-0ubuntu0.16.04.4 | USN-3850-1 |
| Ubuntu 14.04 LTS | nss | 2:3.28.4-0ubuntu0.14.04.4 | USN-3850-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | nspr +1 | 4.21.0-1.el7 | RHSA-2019:2237 |
| RHEL 7 | nss +4 | 3.44.0-4.el7 | RHSA-2019:2237 |
| RHEL 7 | nss-softokn +3 | 3.44.0-5.el7 | RHSA-2019:2237 |
| RHEL 7 | nss-util +1 | 3.44.0-3.el7 | RHSA-2019:2237 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | MozillaFirefox | 60.4.0-3.21.1 | SUSE-SU-2019:0273-1, SUSE-SU-2018:4235-1 |
| SLES 15 | mozilla-nspr | 4.20-3.3.2 | SUSE-SU-2018:4235-1 |
| SLES 15 | mozilla-nss | 3.40.1-3.7.2 | SUSE-SU-2019:0273-1, SUSE-SU-2018:4235-1 |
| SLES 12 SP4 | MozillaFirefox | 60.4.0esr-109.55.1 | SUSE-SU-2018:4236-1 |
| SLES 12 SP4 | mozilla-nspr | 4.20-19.6.1 | SUSE-SU-2018:4236-1 |
| SLES 12 SP4 | mozilla-nss | 3.40.1-58.18.1 | SUSE-SU-2018:4236-1 |
| SLES 12 SP3 | MozillaFirefox | 60.4.0esr-109.55.1 | SUSE-SU-2018:4236-1 |
| SLES 12 SP3 | mozilla-nspr | 4.20-19.6.1 | SUSE-SU-2018:4236-1 |
| SLES 12 SP3 | mozilla-nss | 3.40.1-58.18.1 | SUSE-SU-2018:4236-1 |
| SLES 12 SP2 | MozillaFirefox | 60.4.0esr-109.55.1 | SUSE-SU-2018:4236-1 |
| SLES 12 SP2 | mozilla-nspr | 4.20-19.6.1 | SUSE-SU-2018:4236-1 |
| SLES 12 SP2 | mozilla-nss | 3.40.1-58.18.1 | SUSE-SU-2018:4236-1 |
| SLES 12 SP1 | MozillaFirefox | 60.4.0esr-109.55.1 | SUSE-SU-2018:4236-1 |
| SLES 12 SP1 | mozilla-nspr | 4.20-19.6.1 | SUSE-SU-2018:4236-1 |
| SLES 12 SP1 | mozilla-nss | 3.40.1-58.18.1 | SUSE-SU-2018:4236-1 |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 | MozillaFirefox | 60.4.0esr-109.55.1 | SUSE-SU-2018:4236-1 |
| SLES 12 | mozilla-nspr | 4.20-19.6.1 | SUSE-SU-2018:4236-1 |
| SLES 12 | mozilla-nss | 3.40.1-58.18.1 | SUSE-SU-2018:4236-1 |
| SLES for SAP 12 SP4 | MozillaFirefox | 60.4.0esr-109.55.1 | SUSE-SU-2018:4236-1 |
| SLES for SAP 12 SP4 | mozilla-nspr | 4.20-19.6.1 | SUSE-SU-2018:4236-1 |
| SLES for SAP 12 SP4 | mozilla-nss | 3.40.1-58.18.1 | SUSE-SU-2018:4236-1 |
| SLES for SAP 12 SP3 | MozillaFirefox | 60.4.0esr-109.55.1 | SUSE-SU-2018:4236-1 |
| SLES for SAP 12 SP3 | mozilla-nspr | 4.20-19.6.1 | SUSE-SU-2018:4236-1 |
| SLES for SAP 12 SP3 | mozilla-nss | 3.40.1-58.18.1 | SUSE-SU-2018:4236-1 |
| SLES for SAP 12 SP2 | MozillaFirefox | 60.4.0esr-109.55.1 | SUSE-SU-2018:4236-1 |
| SLES for SAP 12 SP2 | mozilla-nspr | 4.20-19.6.1 | SUSE-SU-2018:4236-1 |
| SLES for SAP 12 SP2 | mozilla-nss | 3.40.1-58.18.1 | SUSE-SU-2018:4236-1 |
| SLES for SAP 12 SP1 | MozillaFirefox | 60.4.0esr-109.55.1 | SUSE-SU-2018:4236-2 |
| SLES for SAP 12 SP1 | mozilla-nspr | 4.20-19.6.1 | SUSE-SU-2018:4236-2 |
| SLES for SAP 12 SP1 | mozilla-nss | 3.40.1-58.18.1 | SUSE-SU-2018:4236-2 |
| SUSE OpenStack Cloud 7 | MozillaFirefox | 60.4.0esr-109.55.1 | SUSE-SU-2018:4236-1 |
| SUSE OpenStack Cloud 7 | mozilla-nspr | 4.20-19.6.1 | SUSE-SU-2018:4236-1 |
| SUSE OpenStack Cloud 7 | mozilla-nss | 3.40.1-58.18.1 | SUSE-SU-2018:4236-1 |
| SUSE Enterprise Storage 4 | MozillaFirefox | 60.4.0esr-109.55.1 | SUSE-SU-2018:4236-1 |
| SUSE Enterprise Storage 4 | mozilla-nspr | 4.20-19.6.1 | SUSE-SU-2018:4236-1 |
| SUSE Enterprise Storage 4 | mozilla-nss | 3.40.1-58.18.1 | SUSE-SU-2018:4236-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | mozilla-nss | 3.69.1-1.2 | openSUSE-SU-2024:11058-1 |
| openSUSE Leap 15.0 | MozillaFirefox | 60.8.0-lp150.3.62.1 | openSUSE-SU-2019:1758-1 |
| openSUSE Leap 15.0 | mozilla-nss | 3.41.1-lp150.2.16.1 | openSUSE-SU-2019:1758-1, openSUSE-SU-2019:0183-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | nss | 3.41-r0 | — |
| Alpine v3.23 | nss | 3.41-r0 | — |
| Alpine v3.22 | nss | 3.41-r0 | — |
| Alpine v3.21 | nss | 3.41-r0 | — |
| Alpine v3.20 | nss | 3.41-r0 | — |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | nss | 3.41-r0 | — |
| Alpine v3.18 | nss | 3.41-r0 | — |
| Alpine v3.17 | nss | 3.41-r0 | — |
| Alpine v3.16 | nss | 3.41-r0 | — |
| Alpine v3.15 | nss | 3.41-r0 | — |
| Alpine v3.14 | nss | 3.41-r0 | — |
| Alpine v3.13 | nss | 3.41-r0 | — |
| Alpine v3.12 | nss | 3.41-r0 | — |
| Alpine v3.11 | nss | 3.41-r0 | — |
| Alpine v3.10 | nss | 3.41-r0 | — |
| Alpine v3.9 | nss | 3.41-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | nss +4 | 3.44.0-4.amzn2.0.2 | ALAS2-2019-1305 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | nspr +1 | 4.21.0-1.el7 | ELSA-2019-2237 |
| Oracle Linux 7 | nss +4 | 3.44.0-4.el7 | ELSA-2019-2237 |
| Oracle Linux 7 | nss-softokn +3 | 3.44.0-5.0.1.el7 | ELSA-2019-2237 |
| Oracle Linux 7 | nss-util +1 | 3.44.0-3.el7 | ELSA-2019-2237 |
Advisories 16
- WID-SEC-2022-0517 Red Hat Enterprise Linux: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 18, 2026
- RHSA-2019:2237 Red Hat Security Advisory: nss, nss-softokn, nss-util, and nspr security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- USN-3850-1 nss vulnerabilities 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-2018:4235-1 Security update for MozillaFirefox, mozilla-nspr and mozilla-nss SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:1758-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11058-1 libfreebl3-3.69.1-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:4236-1 Security update for MozillaFirefox, mozilla-nspr and mozilla-nss SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:0183-1 Security update for mozilla-nss SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:4236-2 Security update for MozillaFirefox, mozilla-nspr and mozilla-nss SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0273-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2025-1212 Oracle Communications Applications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 2, 2025
- ICSA-21-040-04 Siemens RUGGEDCOM ROX II CISA ICS & IT advisories · Feb 9, 2021
- ALAS2-2019-1305 Moderate: nss security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 2, 2019
- ELSA-2019-2237 Moderate: nss, nss-softokn, nss-util, and nspr security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Aug 13, 2019
References
- 107260 vdb-entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2018-12404
- openSUSE-SU-2019:1758 vendor-advisory
- RHSA-2019:2237 vendor-advisory
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- [debian-lts-announce] 20200929 [SECURITY] [DLA 2388-1] nss security update mailing-list
- https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf
- https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04