CVE-2014-1492 Security feature bypass in n/a

Medium 4.3 Published Updated

Man-in-the-middle attackers can spoof SSL servers by exploiting wildcard handling in internationalized domain names within Mozilla NSS.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2014-1492?

CVE-2014-1492 is a medium-severity vulnerability in Mozilla Network Security Services, published on 25 Mar 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-20

Which versions are affected by CVE-2014-1492?

It affects 1 product.

Linux distribution packages (40)
nss Red Hat:enterprise_linux:7::clientAll versions0:3.16.2-2.el7_0
nss-debuginfo Red Hat:enterprise_linux:7::clientAll versions0:3.16.2-2.el7_0
nss-devel Red Hat:enterprise_linux:7::clientAll versions0:3.16.2-2.el7_0
nss-pkcs11-devel Red Hat:enterprise_linux:7::clientAll versions0:3.16.2-2.el7_0
nss-softokn Red Hat:enterprise_linux:7::clientAll versions0:3.16.2-1.el7_0
nss-softokn-debuginfo Red Hat:enterprise_linux:7::clientAll versions0:3.16.2-1.el7_0
nss-softokn-devel Red Hat:enterprise_linux:7::clientAll versions0:3.16.2-1.el7_0
nss-softokn-freebl Red Hat:enterprise_linux:7::clientAll versions0:3.16.2-1.el7_0
nss-softokn-freebl-devel Red Hat:enterprise_linux:7::clientAll versions0:3.16.2-1.el7_0
nss-sysinit Red Hat:enterprise_linux:7::clientAll versions0:3.16.2-2.el7_0
nss-tools Red Hat:enterprise_linux:7::clientAll versions0:3.16.2-2.el7_0
nss-util Red Hat:enterprise_linux:7::clientAll versions0:3.16.2-1.el7_0
nss-util-debuginfo Red Hat:enterprise_linux:7::clientAll versions0:3.16.2-1.el7_0
nss-util-devel Red Hat:enterprise_linux:7::clientAll versions0:3.16.2-1.el7_0
nss Red Hat:enterprise_linux:7::computenodeAll versions0:3.16.2-2.el7_0
nss-debuginfo Red Hat:enterprise_linux:7::computenodeAll versions0:3.16.2-2.el7_0
nss-devel Red Hat:enterprise_linux:7::computenodeAll versions0:3.16.2-2.el7_0
nss-pkcs11-devel Red Hat:enterprise_linux:7::computenodeAll versions0:3.16.2-2.el7_0
nss-softokn Red Hat:enterprise_linux:7::computenodeAll versions0:3.16.2-1.el7_0
nss-softokn-debuginfo Red Hat:enterprise_linux:7::computenodeAll versions0:3.16.2-1.el7_0
nss-softokn-devel Red Hat:enterprise_linux:7::computenodeAll versions0:3.16.2-1.el7_0
nss-softokn-freebl Red Hat:enterprise_linux:7::computenodeAll versions0:3.16.2-1.el7_0
nss-softokn-freebl-devel Red Hat:enterprise_linux:7::computenodeAll versions0:3.16.2-1.el7_0
nss-sysinit Red Hat:enterprise_linux:7::computenodeAll versions0:3.16.2-2.el7_0
nss-tools Red Hat:enterprise_linux:7::computenodeAll versions0:3.16.2-2.el7_0
nss-util Red Hat:enterprise_linux:7::computenodeAll versions0:3.16.2-1.el7_0
nss-util-debuginfo Red Hat:enterprise_linux:7::computenodeAll versions0:3.16.2-1.el7_0
nss-util-devel Red Hat:enterprise_linux:7::computenodeAll versions0:3.16.2-1.el7_0
nss Red Hat:enterprise_linux:7::serverAll versions0:3.16.2-2.el7_0
nss-debuginfo Red Hat:enterprise_linux:7::serverAll versions0:3.16.2-2.el7_0
nss-devel Red Hat:enterprise_linux:7::serverAll versions0:3.16.2-2.el7_0
nss-pkcs11-devel Red Hat:enterprise_linux:7::serverAll versions0:3.16.2-2.el7_0
nss-softokn Red Hat:enterprise_linux:7::serverAll versions0:3.16.2-1.el7_0
nss-softokn-debuginfo Red Hat:enterprise_linux:7::serverAll versions0:3.16.2-1.el7_0
nss-softokn-devel Red Hat:enterprise_linux:7::serverAll versions0:3.16.2-1.el7_0
nss-softokn-freebl Red Hat:enterprise_linux:7::serverAll versions0:3.16.2-1.el7_0
nss-softokn-freebl-devel Red Hat:enterprise_linux:7::serverAll versions0:3.16.2-1.el7_0
nss-sysinit Red Hat:enterprise_linux:7::serverAll versions0:3.16.2-2.el7_0
nss-tools Red Hat:enterprise_linux:7::serverAll versions0:3.16.2-2.el7_0
nss-util Red Hat:enterprise_linux:7::serverAll versions0:3.16.2-1.el7_0

Products include Mozilla Network Security Services.

How do I fix CVE-2014-1492?

Upgrade to a fixed version.

Is CVE-2014-1492 being exploited?

There is no known exploitation of CVE-2014-1492 in the wild and no public exploit code.

All Mozilla Network Security Services vulnerabilities

Sources

Also known as DEBIAN-CVE-2014-1492, GHSA-fxvw-6w4h-3mx5, RHSA-2014:1073, UBUNTU-CVE-2014-1492.

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