CVE-2015-2741

Mozilla Firefox before 39.0, Firefox ESR 38.x before 38.1, and Thunderbird before 38.1 do not enforce key pinning upon encountering an X.509 certificate problem that generates a user dialog, which allows user-assisted man-in-the-middle attackers to bypass intended access restrictions by triggering a (1) expired certificate or (2) mismatched hostname for a domain with pinning enabled.

• How can I get the fixes?
• What do statuses mean?

References

• MITRE
• NVD
• Launchpad
• Debian

Related Ubuntu Security Notices (USN)

• USN-2656-1
• Firefox vulnerabilities
• 9 July 2015
• USN-2656-2
• Firefox vulnerabilities
• 15 July 2015

Other references

• https://www.mozilla.org/en-US/security/advisories/mfsa2015-67/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1147497
• http://www.mozilla.org/security/announce/2015/mfsa2015-67.html
• https://www.cve.org/CVERecord?id=CVE-2015-2741