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    CVE-2019-20172

    Kernel/VM/MemoryManager.cpp in SerenityOS before 2019-12-30 does not reject syscalls with pointers into the kernel-only virtual address space, which allows local users to gain privileges by overwriting a return address that was found on the kernel stack.

    Published:Dec 31, 2019
    Last Modified:Nov 21, 2024
    EPS:Dec 31, 2019
    EPSS Score:0.00146
    CVSS Score:7.8

    Affected Products

    Vendor
    Serenityos
    Product
    Serenityos

    Exploits

    https://github.com/Fire30/CTF-WRITEUPS/tree/master/36c3_ctf/wisdomhttps://github.com/Fire30/CTF-WRITEUPS/tree/master/36c3_ctf/wisdom

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    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