Description
Null pointer dereference vulnerability in NSS since 3.24.0 was found when server receives empty SSLv2 messages resulting into denial of service by remote attacker.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| NSS project | nss | since 3.24.0 | — |
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 | 2:3.26.2-1.1 | — |
| Debian 13 | nss | 2:3.26.2-1.1 | — |
| Debian 12 | nss | 2:3.26.2-1.1 | — |
| Debian 8 | nss | 2:3.26-1+debu8u2 | DSA-3872-1 |
| Debian 7 | nss | 2:3.26-1+debu7u4 | DLA-971-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | nss | 2:3.28.4-0ubuntu0.16.04.2 | USN-3336-1 |
| Ubuntu 14.04 LTS | nss | 2:3.28.4-0ubuntu0.14.04.2 | USN-3336-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | nss +4 | 3.28.4-1.2.el7_3 | RHSA-2017:1365 |
| RHEL 6 | nss +4 | 3.28.4-3.el6_9 | RHSA-2017:1364 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | nss | No fix yet | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | nss +4 | 3.28.4-1.2.0.1.el7_3 | ELSA-2017-1365 |
Advisories 6
- RHSA-2017:1364 Red Hat Security Advisory: nss security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2017:1365 Red Hat Security Advisory: nss security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-3336-1 nss vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-971-1 nss - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3872-1 nss - security update Debian Security (DSA / DLA) · Mar 9, 2026
- ELSA-2017-1365 Important: nss security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · May 30, 2017
References
- RHSA-2017:1365 vendor-advisory
- 1038579 vdb-entry
- 98744 vdb-entry
- RHSA-2017:1712 vendor-advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- https://hg.mozilla.org/projects/nss/rev/55ea60effd0d
- RHSA-2017:1364 vendor-advisory
- RHSA-2017:1567 vendor-advisory
- DSA-3872 vendor-advisory