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medium 4.3

CVE-2014-1492 json

The cert_TestHostName function in lib/certdb/certdb.c in the certificate-checking implementation in Mozilla Network Security Services (NSS)…

published 12y ago modified 4mo ago also EUVD-2014-1568

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.8%
EPSS 1.8% chance of exploitation in 30 days, percentile 78%
public exploits
0
none known

Summary

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.

Patch / fix

  • nss Debian 14, Debian 13, Debian 12 2:3.16-1

debian advisories DEBIAN-CVE-2014-1492

  • nss Ubuntu 14.04 LTS 2:3.15.4-1ubuntu7
  • firefox Ubuntu 14.04 LTS 29.0+build1-0ubuntu0.14.04.2

ubuntu advisories UBUNTU-CVE-2014-1492

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • nss RHEL 6 3.16.1-4.el6_5
  • nspr RHEL 6 4.10.6-1.el6_5
  • nss-util RHEL 6 3.16.1-1.el6_5
  • nss-tools RHEL 6 3.16.1-4.el6_5
  • nss-sysinit RHEL 6 3.16.1-4.el6_5
  • nss-softokn RHEL 7 3.16.2-1.el7_0
  • nss RHEL 7 3.16.2-2.el7_0
  • nss-util RHEL 7 3.16.2-1.el7_0

red hat advisories RHSA-2014:0917RHSA-2014:1073RHSA-2014:1246

  • firefox-esr openSUSE Tumbleweed 128.5.1-1.1
  • MozillaFirefox openSUSE Tumbleweed 50.1.0-1.1
  • mozilla-nss openSUSE Tumbleweed 3.26.2-1.1

opensuse advisories openSUSE-SU-2024:14572-1openSUSE-SU-2024:10071-1openSUSE-SU-2024:10451-1

Is CVE-2014-1492 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2014-1492 updated cvss 2.6

nss: IDNA hostname matching code does not follow RFC 6125 recommendation (MFSA 2014-45)

  • Red Hat Enterprise Linux (v. 5 server) nss 3.16.1-2.el5, nss-tools 3.16.1-2.el5
    fixed: vendor fix RHSA-2014:1246
  • Red Hat Enterprise Linux Client (v. 7) nss 3.16.2-2.el7_0, nss-util 3.16.2-1.el7_0, nss-tools 3.16.2-2.el7_0, nss-softokn 3.16.2-1.el7_0, nss-sysinit 3.16.2-2.el7_0, nss-softokn-freebl 3.16.2-1.el7_0 Red Hat Enterprise Linux Client Optional (v. 7) nss-devel 3.16.2-2.el7_0, nss-debuginfo 3.16.2-2.el7_0, nss-util-devel 3.16.2-1.el7_0, nss-pkcs11-devel 3.16.2-2.el7_0, nss-softokn-devel 3.16.2-1.el7_0, nss-util-debuginfo 3.16.2-1.el7_0, +2 more Red Hat Enterprise Linux ComputeNode (v. 7) nss 3.16.2-2.el7_0, nss-util 3.16.2-1.el7_0, nss-tools 3.16.2-2.el7_0, nss-softokn 3.16.2-1.el7_0, nss-sysinit 3.16.2-2.el7_0, nss-softokn-freebl 3.16.2-1.el7_0 Red Hat Enterprise Linux ComputeNode Optional (v. 7) nss-devel 3.16.2-2.el7_0, nss-debuginfo 3.16.2-2.el7_0, nss-util-devel 3.16.2-1.el7_0, nss-pkcs11-devel 3.16.2-2.el7_0, nss-softokn-devel 3.16.2-1.el7_0, nss-util-debuginfo 3.16.2-1.el7_0, +2 more
    fixed: vendor fix RHSA-2014:1073
  • Red Hat Enterprise Linux Desktop (v. 5 client) nss 3.16.1-2.el5, nss-tools 3.16.1-2.el5
    fixed: vendor fix RHSA-2014:1246
  • Red Hat Enterprise Linux Desktop (v. 6) nss 3.16.1-4.el6_5, nspr 4.10.6-1.el6_5, nss-util 3.16.1-1.el6_5, nss-tools 3.16.1-4.el6_5, nss-sysinit 3.16.1-4.el6_5 Red Hat Enterprise Linux Desktop Optional (v. 6) nss 3.16.1-4.el6_5, nspr 4.10.6-1.el6_5, nss-util 3.16.1-1.el6_5
    fixed: vendor fix RHSA-2014:0917
  • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) nss 3.16.1-2.el5
    fixed: vendor fix RHSA-2014:1246
  • Red Hat Enterprise Linux HPC Node (v. 6) nss 3.16.1-4.el6_5, nspr 4.10.6-1.el6_5, nss-util 3.16.1-1.el6_5, nss-tools 3.16.1-4.el6_5, nss-sysinit 3.16.1-4.el6_5 Red Hat Enterprise Linux HPC Node Optional (v. 6) nss 3.16.1-4.el6_5, nspr 4.10.6-1.el6_5, nss-util 3.16.1-1.el6_5 Red Hat Enterprise Linux Server (v. 6) nss 3.16.1-4.el6_5, nspr 4.10.6-1.el6_5, nss-util 3.16.1-1.el6_5, nss-tools 3.16.1-4.el6_5, nss-sysinit 3.16.1-4.el6_5
    fixed: vendor fix RHSA-2014:0917
  • Red Hat Enterprise Linux Server (v. 7) nss 3.16.2-2.el7_0, nss-util 3.16.2-1.el7_0, nss-tools 3.16.2-2.el7_0, nss-softokn 3.16.2-1.el7_0, nss-sysinit 3.16.2-2.el7_0, nss-softokn-freebl 3.16.2-1.el7_0
    fixed: vendor fix RHSA-2014:1073
  • Red Hat Enterprise Linux Server Optional (v. 6) nss 3.16.1-4.el6_5
    fixed: vendor fix RHSA-2014:0917
show 5 more
  • Red Hat Enterprise Linux Server Optional (v. 7) nss-debuginfo 3.16.2-2.el7_0, nss-pkcs11-devel 3.16.2-2.el7_0
    fixed: vendor fix RHSA-2014:1073
  • Red Hat Enterprise Linux Workstation (v. 6) nss 3.16.1-4.el6_5, nspr 4.10.6-1.el6_5, nss-util 3.16.1-1.el6_5, nss-tools 3.16.1-4.el6_5, nss-sysinit 3.16.1-4.el6_5
    fixed: vendor fix RHSA-2014:0917
  • Red Hat Enterprise Linux Workstation (v. 7) nss 3.16.2-2.el7_0, nss-util 3.16.2-1.el7_0, nss-tools 3.16.2-2.el7_0, nss-softokn 3.16.2-1.el7_0, nss-sysinit 3.16.2-2.el7_0, nss-softokn-freebl 3.16.2-1.el7_0
    fixed: vendor fix RHSA-2014:1073
  • Red Hat Enterprise Linux Workstation Optional (v. 6) nss 3.16.1-4.el6_5
    fixed: vendor fix RHSA-2014:0917
  • Red Hat Enterprise Linux Workstation Optional (v. 7) nss-debuginfo 3.16.2-2.el7_0, nss-pkcs11-devel 3.16.2-2.el7_0
    fixed: vendor fix RHSA-2014:1073

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.75% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • hg.mozilla.org https://hg.mozilla.org/projects/nss/rev/709d4e597979 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.