UBUNTU-CVE-2015-2731

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    UBUNTU-CVE-2015-2731

    Published: 5 Jul 2015Last Modified: 22 Apr 2026
    Upstream:
    CVE-2015-2731

    Summary:

    Details: Use-after-free vulnerability in the CSPService::ShouldLoad function in the microtask implementation in Mozilla Firefox before 39.0, Firefox ESR 38.x before 38.1, and Thunderbird before 38.1 allows remote attackers to execute arbitrary code by leveraging client-side JavaScript that triggers removal of a DOM object on the basis of a Content Policy.

    References: https://ubuntu.com/security/CVE-2015-2731, https://www.mozilla.org/en-US/security/advisories/mfsa2015-63/, https://bugzilla.mozilla.org/show_bug.cgi?id=1149891, http://www.mozilla.org/security/announce/2015/mfsa2015-63.html, https://ubuntu.com/security/notices/USN-2656-1, https://ubuntu.com/security/notices/USN-2656-2, https://www.cve.org/CVERecord?id=CVE-2015-2731

    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-2015-2731 | CVE-DB