CVE-2014-1582

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2014-10-15 · updated 2026-06-17
Weakness: CWE-310

Description

The Public Key Pinning (PKP) implementation in Mozilla Firefox before 33.0 does not properly consider the connection-coalescing behavior of SPDY and HTTP/2 in the case of a shared IP address, which allows man-in-the-middle attackers to bypass an intended pinning configuration and spoof a web site by providing a valid certificate from an arbitrary recognized Certification Authority.

Affected products

Mozilla Firefox: through 32.0; 30.0, 31.0, 31.1.0

References

http://lists.fedoraproject.org/pipermail/package-announce/2014-November/141796.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-October/141085.html
http://lists.opensuse.org/opensuse-updates/2014-11/msg00001.html
http://lists.opensuse.org/opensuse-updates/2014-11/msg00002.html
http://secunia.com/advisories/62022
http://secunia.com/advisories/62023
http://www.mozilla.org/security/announce/2014/mfsa2014-80.html
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
http://www.securityfocus.com/bid/70432
http://www.securitytracker.com/id/1031028
http://www.ubuntu.com/usn/USN-2372-1
https://bugzilla.mozilla.org/show_bug.cgi?id=1049095

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