UBUNTU-CVE-2016-5270

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    UBUNTU-CVE-2016-5270

    Published: 22 Sept 2016Last Modified: 22 Apr 2026
    Upstream:
    CVE-2016-5270

    Summary:

    Details: Heap-based buffer overflow in the nsCaseTransformTextRunFactory::TransformString function in Mozilla Firefox before 49.0, Firefox ESR 45.x before 45.4, and Thunderbird < 45.4 allows remote attackers to cause a denial of service (boolean out-of-bounds write) or possibly have unspecified other impact via Unicode characters that are mishandled during text conversion.

    References: https://ubuntu.com/security/CVE-2016-5270, https://www.mozilla.org/en-US/security/advisories/mfsa2016-85/, https://ubuntu.com/security/notices/USN-3076-1, https://ubuntu.com/security/notices/USN-3112-1, https://www.cve.org/CVERecord?id=CVE-2016-5270

    Affected packages

    Package

    Name: firefox

    Purl: pkg:deb/ubuntu/[email protected]+build4-0ubuntu0.14.04.1?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -49.0+build4-0ubuntu0.14.04.1

    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