UBUNTU-CVE-2018-18493

    Dashboard / Vulnerabilities / UBUNTU-CVE-2018-18493

    UBUNTU-CVE-2018-18493

    Published: 11 Dec 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-18493

    Summary:

    Details: A buffer overflow can occur in the Skia library during buffer offset calculations with hardware accelerated canvas 2D actions due to the use of 32-bit calculations instead of 64-bit. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox < 64.

    References: https://ubuntu.com/security/CVE-2018-18493, https://www.mozilla.org/en-US/security/advisories/mfsa2018-29/#CVE-2018-18493, https://www.mozilla.org/en-US/security/advisories/mfsa2018-31/#CVE-2018-18493, https://ubuntu.com/security/notices/USN-3844-1, https://ubuntu.com/security/notices/USN-3868-1, https://www.cve.org/CVERecord?id=CVE-2018-18493

    Affected packages

    Package

    Name: firefox

    Purl: pkg:deb/ubuntu/[email protected]+build3-0ubuntu0.14.04.1?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -64.0+build3-0ubuntu0.14.04.1

    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-2018-18493 | CVE-DB