CVE-2018-5163

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    CVE-2018-5163

    Published: 11 Jun 2018Last Modified: 10 Mar 2026

    Summary:

    Details: If a malicious attacker has used another vulnerability to gain full control over a content process, they may be able to replace the alternate data resources stored in the JavaScript Start-up Bytecode Cache (JSBC) for other JavaScript code. If the parent process then runs this replaced code, the executed script would be run with the parent process' privileges, escaping the sandbox on content processes. This vulnerability affects Firefox < 60.

    References: , http://www.securityfocus.com/bid/104139, http://www.securitytracker.com/id/1040896, https://usn.ubuntu.com/3645-1/, https://www.mozilla.org/security/advisories/mfsa2018-11/, https://bugzilla.mozilla.org/show_bug.cgi?id=1426353

    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