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CVE-2016-5284

Publication date 22 September 2016

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.4 · High

Score breakdown

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.

Status

Package Ubuntu Release Status
firefox 16.10 yakkety
Fixed 49.0+build4-0ubuntu2
16.04 LTS xenial
Fixed 49.0+build4-0ubuntu0.16.04.1
14.04 LTS trusty
Fixed 49.0+build4-0ubuntu0.14.04.1
12.04 LTS precise
Fixed 49.0+build4-0ubuntu0.12.04.1
thunderbird 16.10 yakkety
Fixed 1:45.4.0+build1-0ubuntu0.16.10.1
16.04 LTS xenial
Fixed 1:45.4.0+build1-0ubuntu0.16.04.1
14.04 LTS trusty
Fixed 1:45.4.0+build1-0ubuntu0.14.04.1
12.04 LTS precise
Fixed 1:45.4.0+build1-0ubuntu0.12.04.1

Severity score breakdown

Parameter Value
Base score 7.4 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Changed
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

References

Related Ubuntu Security Notices (USN)

    • USN-3076-1
    • Firefox vulnerabilities
    • 22 September 2016
    • USN-3112-1
    • Thunderbird vulnerabilities
    • 27 October 2016

Other references