CVE-2016-5284
N/A
Published: September 22, 2016 at 10:00 PM UTC
Updated: June 17, 2026 at 12:49 AM UTC
1 product affected across 1 vendorFirefox
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Severity
N/A
Exploit prediction
EPSS 2%
Description
Mozilla Firefox before 49.0, Firefox ESR 45.x before 45.4, and Thunderbird < 45.4 rely on unintended expiration dates for Preloaded Public Key Pinning, which allows man-in-the-middle attackers to spoof add-on updates by leveraging possession of an X.509 server certificate for addons.mozilla.org signed by an arbitrary built-in Certification Authority.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (13)
Vendor Advisoryx_refsource_REDHAT
Source: [email protected]
http://rhn.redhat.com/errata/RHSA-2016-1912.htmlMailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
http://seclists.org/dailydave/2016/q3/51Vendor Advisoryx_refsource_DEBIAN
Source: [email protected]
http://www.debian.org/security/2016/dsa-3674x_refsource_CONFIRMRelease Notes
Source: [email protected]
http://www.mozilla.org/security/announce/2016/mfsa2016-85.htmlx_refsource_CONFIRM
Source: [email protected]
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.htmlx_refsource_CONFIRMThird Party AdvisoryVDB Entry
Source: [email protected]
https://blog.mozilla.org/security/2016/09/16/update-on-add-on-pinning-vulnerability/Quick Info
StatusMODIFIED
CWE
CWE-20
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