nss: IDNA hostname matching code does not follow RFC 6125 recommendation (MFSA 2014-45)
Published Mar 25, 2014
4.3
MEDIUMCVSS 2.0
EPSS 1.77%
Description
The cert_TestHostName function in lib/certdb/certdb.c in the certificate-checking implementation in Mozilla Network Security Services (NSS) before 3.16 accepts a wildcard character that is embedded in an internationalized domain name's U-label, which might allow man-in-the-middle attackers to spoof SSL servers via a crafted certificate.
Affected products
No data.
- ≤ 3.15.5
- 3.2
- 3.2.1
- 3.3
- 3.3.1
- 3.3.2
- 3.4
- 3.4.1
- 3.4.2
- 3.5
- 3.6
- 3.6.1
- 3.7
- 3.7.1
- 3.7.2
- 3.7.3
- 3.7.5
- 3.7.7
- 3.8
- 3.9
- 3.11.2
- 3.11.3
- 3.11.4
- 3.11.5
- 3.12
- 3.12.1
- 3.12.2
- 3.12.3
- 3.12.3.1
- 3.12.3.2
- 3.12.4
- 3.12.5
- 3.12.6
- 3.12.7
- 3.12.8
- 3.12.9
- 3.12.10
- 3.12.11
- 3.14
- 3.14.1
- 3.14.2
- 3.14.3
- 3.14.4
- 3.14.5
- 3.15
- 3.15.1
- 3.15.2
- 3.15.3
- 3.15.3.1
- 3.15.4
No data.
Red Hat Enterprise Linux 5
nss-0:3.16.1-2.el5
Fixed · RHSA-2014:1246
Red Hat Enterprise Linux 6
nspr-0:4.10.6-1.el6_5
Fixed · RHSA-2014:0917
Red Hat Enterprise Linux 6
nss-0:3.16.1-4.el6_5
Fixed · RHSA-2014:0917
Red Hat Enterprise Linux 6
nss-util-0:3.16.1-1.el6_5
Fixed · RHSA-2014:0917
Red Hat Enterprise Linux 7
nss-0:3.16.2-2.el7_0
Fixed · RHSA-2014:1073
Red Hat Enterprise Linux 7
nss-softokn-0:3.16.2-1.el7_0
Fixed · RHSA-2014:1073
Red Hat Enterprise Linux 7
nss-util-0:3.16.2-1.el7_0
Fixed · RHSA-2014:1073
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | nss-0:3.16.1-2.el5 | Fixed | RHSA-2014:1246 |
| Red Hat Enterprise Linux 6 | nspr-0:4.10.6-1.el6_5 | Fixed | RHSA-2014:0917 |
| Red Hat Enterprise Linux 6 | nss-0:3.16.1-4.el6_5 | Fixed | RHSA-2014:0917 |
| Red Hat Enterprise Linux 6 | nss-util-0:3.16.1-1.el6_5 | Fixed | RHSA-2014:0917 |
| Red Hat Enterprise Linux 7 | nss-0:3.16.2-2.el7_0 | Fixed | RHSA-2014:1073 |
| Red Hat Enterprise Linux 7 | nss-softokn-0:3.16.2-1.el7_0 | Fixed | RHSA-2014:1073 |
| Red Hat Enterprise Linux 7 | nss-util-0:3.16.2-1.el7_0 | Fixed | RHSA-2014:1073 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.77% (0.01767) | 77.31th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.77% (0.01767) | 75.12th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.85% (0.00852) | 72.82th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.37% (0.02371) | 74.94th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.85% (0.00852) | 73.33th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.16% (0.00162) | 54.21th | v3 (v2023.03.01) |
| Jun 25, 2024 | 0.16% (0.00162) | 53.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.16% (0.00162) | 51.07th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.69% (0.02686) | 82.85th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.69% (0.02686) | 81.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.69% (0.02686) | 62.66th | v2 (v2022.01.01) |
References (30)
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761 x_refsource_CONFIRM
- http://lists.fedoraproject.org/pipermail/package-announce/2014-May/132437.html vendor-advisoryx_refsource_FEDORA
- http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00006.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00015.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2014-05/msg00010.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2014-05/msg00033.html vendor-advisoryx_refsource_SUSE
- http://seclists.org/fulldisclosure/2014/Dec/23 mailing-listx_refsource_FULLDISC
- http://secunia.com/advisories/59866 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/60621 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/60794 third-party-advisoryx_refsource_SECUNIA
- http://www.debian.org/security/2014/dsa-2994 vendor-advisoryx_refsource_DEBIAN
- http://www.mozilla.org/security/announce/2014/mfsa2014-45.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/topics/security/cpuoct2014-1972960.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html x_refsource_CONFIRM
- http://www.securityfocus.com/archive/1/534161/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/66356 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-2159-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2185-1 vendor-advisoryx_refsource_UBUNTU
- http://www.vmware.com/security/advisories/VMSA-2014-0012.html x_refsource_CONFIRM
- https://access.redhat.com/security/cve/CVE-2014-1492 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=903885 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=1079851 x_refsource_CONFIRMIssue Tracking
- https://developer.mozilla.org/en-US/docs/NSS/NSS_3.16_release_notes x_refsource_CONFIRM
- https://hg.mozilla.org/projects/nss/rev/709d4e597979 x_refsource_CONFIRMExploitPatch
- https://nvd.nist.gov/vuln/detail/CVE-2014-1492
- https://security.gentoo.org/glsa/201504-01 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2014-1492
Change history (0)
No recorded changes yet.