Description
The CERT_VerifyCert function in lib/certhigh/certvfy.c in Mozilla Network Security Services (NSS) 3.15 before 3.15.3 provides an unexpected return value for an incompatible key-usage certificate when the CERTVerifyLog argument is valid, which might allow remote attackers to bypass intended access restrictions via a crafted certificate.
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 | 2:3.15.3-1 | — |
| Debian 13 | nss | 2:3.15.3-1 | — |
| Debian 12 | nss | 2:3.15.3-1 | — |
| Debian 7 | nss | 2:3.14.5-1+deb7u1 | DSA-2994-1 |
| Debian 6.0 | nss | 3.12.8-1+squeeze8 | DLA-23-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | nspr +1 | 4.10.2-1.el6_5 | RHSA-2013:1829 |
| RHEL 6 | nss +4 | 3.15.3-2.el6_5 | RHSA-2013:1829 |
| RHEL 6 | nss-util +1 | 3.15.3-1.el6_5 | RHSA-2013:1829 |
| RHEL 6 | rhev-hypervisor6 | 6.5-20140112.0.el6ev | RHSA-2014:0041 |
| RHEL 5 | nspr +1 | 4.10.2-2.el5_10 | RHSA-2013:1791 |
| RHEL 5 | nss +3 | 3.15.3-3.el5_10 | RHSA-2013:1791 |
Advisories 5
- RHSA-2014:0041 Red Hat Security Advisory: rhev-hypervisor6 security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2013:1829 Red Hat Security Advisory: nss, nspr, and nss-util security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2013:1791 Red Hat Security Advisory: nss and nspr security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- DSA-2994-1 nss - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-23-1 nss - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- 63737 vdb-entry
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- https://developer.mozilla.org/docs/NSS/NSS_3.15.3_release_notes
- http://www.vmware.com/security/advisories/VMSA-2014-0012.html
- DSA-2994 vendor-advisory
- http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
- 20141205 NEW: VMSA-2014-0012 - VMware vSphere product updates address security vulnerabilities mailing-list
- http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
- GLSA-201504-01 vendor-advisory
- GLSA-201406-19 vendor-advisory
- USN-2030-1 vendor-advisory
- RHSA-2013:1791 vendor-advisory
- http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html
- SUSE-SU-2013:1807 vendor-advisory
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761
- 20141205 NEW: VMSA-2014-0012 - VMware vSphere product updates address security vulnerabilities mailing-list
- http://www.oracle.com/technetwork/topics/security/cpuoct2014-1972960.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=910438
- http://www.mozilla.org/security/announce/2013/mfsa2013-103.html
- openSUSE-SU-2013:1732 vendor-advisory
- RHSA-2014:0041 vendor-advisory
- RHSA-2013:1829 vendor-advisory