UBUNTU-CVE-2023-4052

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    UBUNTU-CVE-2023-4052

    Published: 1 Aug 2023Last Modified: 22 Apr 2026
    Upstream:
    CVE-2023-4052

    Summary:

    Details: The Firefox updater created a directory writable by non-privileged users. When uninstalling Firefox, any files in that directory would be recursively deleted with the permissions of the uninstalling user account. This could be combined with creation of a junction (a form of symbolic link) to allow arbitrary file deletion controlled by the non-privileged user. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 116, Firefox ESR < 115.1, and Thunderbird < 115.1.

    References: https://ubuntu.com/security/CVE-2023-4052, https://bugzilla.mozilla.org/show_bug.cgi?id=1824420, https://www.mozilla.org/security/advisories/mfsa2023-31/, https://www.mozilla.org/security/advisories/mfsa2023-29/, https://www.cve.org/CVERecord?id=CVE-2023-4052

    Affected packages

    Package

    Name: mozjs52

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=bionic

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    52.3.1-0ubuntu3
    52.3.1-7fakesync1

    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-2023-4052 | CVE-DB