UBUNTU-CVE-2015-2741

    Dashboard / Vulnerabilities / UBUNTU-CVE-2015-2741

    UBUNTU-CVE-2015-2741

    Published: 5 Jul 2015Last Modified: 22 Apr 2026
    Upstream:
    CVE-2015-2741

    Summary:

    Details: 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.

    References: https://ubuntu.com/security/CVE-2015-2741, 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://ubuntu.com/security/notices/USN-2656-1, https://ubuntu.com/security/notices/USN-2656-2, https://www.cve.org/CVERecord?id=CVE-2015-2741

    Affected packages

    Package

    Name: firefox

    Purl: pkg:deb/ubuntu/[email protected]+build5-0ubuntu0.14.04.1?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -39.0+build5-0ubuntu0.14.04.1

    Affected versions

    24.0+build1-0ubuntu1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    UBUNTU-CVE-2015-2741 | CVE-DB