CVE-2014-1492

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2014-03-25 · updated 2026-06-17
Weakness: CWE-20

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

Mozilla Network Security Services: through 3.15.5; 3.2, 3.2.1, 3.3, 3.3.1, 3.3.2, 3.4 (+43)

References

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761
http://lists.fedoraproject.org/pipermail/package-announce/2014-May/132437.html
http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00006.html
http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00015.html
http://lists.opensuse.org/opensuse-updates/2014-05/msg00010.html
http://lists.opensuse.org/opensuse-updates/2014-05/msg00033.html
http://seclists.org/fulldisclosure/2014/Dec/23
http://secunia.com/advisories/59866
http://secunia.com/advisories/60621
http://secunia.com/advisories/60794
http://www.debian.org/security/2014/dsa-2994
http://www.mozilla.org/security/announce/2014/mfsa2014-45.html

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