UBUNTU-CVE-2023-37209

    Dashboard / Vulnerabilities / UBUNTU-CVE-2023-37209

    UBUNTU-CVE-2023-37209

    Published: 5 Jul 2023Last Modified: 22 Apr 2026
    Upstream:
    CVE-2023-37209
    Aliases:
    USN-6201-1

    Summary:

    Details: A use-after-free condition existed in `NotifyOnHistoryReload` where a `LoadingSessionHistoryEntry` object was freed and a reference to that object remained. This resulted in a potentially exploitable condition when the reference to that object was later reused. This vulnerability affects Firefox < 115.

    References: https://ubuntu.com/security/CVE-2023-37209, https://www.mozilla.org/en-US/security/advisories/mfsa2023-22/#CVE-2023-37209, https://bugzilla.mozilla.org/show_bug.cgi?id=1837993, https://www.mozilla.org/security/advisories/mfsa2023-22/, https://ubuntu.com/security/notices/USN-6201-1, https://www.cve.org/CVERecord?id=CVE-2023-37209

    Affected packages

    Package

    Name: firefox

    Purl: pkg:deb/ubuntu/[email protected]+build2-0ubuntu0.20.04.3?arch=source&distro=focal

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -115.0+build2-0ubuntu0.20.04.3

    Affected versions

    69.0.3+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-2023-37209 | CVE-DB