CVE-2019-9796

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    CVE-2019-9796

    Published: 26 Apr 2019Last Modified: 16 Apr 2026

    Summary:

    Details: A use-after-free vulnerability can occur when the SMIL animation controller incorrectly registers with the refresh driver twice when only a single registration is expected. When a registration is later freed with the removal of the animation controller element, the refresh driver incorrectly leaves a dangling pointer to the driver's observer array. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.

    References: https://www.mozilla.org/security/advisories/mfsa2019-08/, https://www.mozilla.org/security/advisories/mfsa2019-11/, https://access.redhat.com/errata/RHSA-2019:0966, https://access.redhat.com/errata/RHSA-2019:1144, https://www.mozilla.org/security/advisories/mfsa2019-07/, https://bugzilla.mozilla.org/show_bug.cgi?id=1531277

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    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
    CVE-2019-9796 | CVE-DB