Mozilla: Key pinning bypasses (MFSA 2014-80)
Published Oct 15, 2014
4.3
MEDIUMCVSS 2.0
EPSS 1.19%
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
No data.
No data.
Red Hat Enterprise Linux 5
firefox
Not affected
Red Hat Enterprise Linux 5
thunderbird
Not affected
Red Hat Enterprise Linux 6
firefox
Not affected
Red Hat Enterprise Linux 6
thunderbird
Not affected
Red Hat Enterprise Linux 7
firefox
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 5 | thunderbird | Not affected | n/a |
| Red Hat Enterprise Linux 6 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 6 | thunderbird | Not affected | n/a |
| Red Hat Enterprise Linux 7 | firefox | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the version of firefox and thunderbird as shipped with Red Hat Enterprise Linux 5, 6 and 7.
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 1, 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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.19% (0.01186) | 66.71th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.20% (0.01195) | 63.94th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.88% (0.00879) | 73.23th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.68% (0.02679) | 76.35th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.88% (0.00879) | 73.72th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.20% (0.00201) | 59.00th | v3 (v2023.03.01) |
| Nov 9, 2023 | 0.20% (0.00201) | 57.85th | v3 (v2023.03.01) |
| Aug 5, 2023 | 0.29% (0.00286) | 64.55th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.40% (0.00405) | 69.65th | 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 (17)
- http://lists.fedoraproject.org/pipermail/package-announce/2014-November/141796.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2014-October/141085.html vendor-advisoryx_refsource_FEDORA
- http://lists.opensuse.org/opensuse-updates/2014-11/msg00001.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2014-11/msg00002.html vendor-advisoryx_refsource_SUSE
- http://secunia.com/advisories/62022 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/62023 third-party-advisoryx_refsource_SECUNIA
- http://www.mozilla.org/security/announce/2014/mfsa2014-80.html x_refsource_CONFIRMVendor Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/70432 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1031028 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-2372-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2014-1582 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1049095 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=1152364 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2014-1582
- https://security.gentoo.org/glsa/201504-01 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2014-1582
Change history (0)
No recorded changes yet.