UBUNTU-CVE-2023-21102

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    UBUNTU-CVE-2023-21102

    Published: 8 May 2023Last Modified: 22 Apr 2026
    Upstream:
    CVE-2023-21102
    Aliases:
    USN-6079-1
    USN-6091-1
    USN-6096-1

    Summary:

    Details: In __efi_rt_asm_wrapper of efi-rt-wrapper.S, there is a possible bypass of shadow stack protection due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-260821414References: Upstream kernel

    References: https://ubuntu.com/security/CVE-2023-21102, https://source.android.com/docs/security/bulletin/2023-05-01, https://git.kernel.org/linus/ff7a167961d1b97e0e205f245f806e564d3505e7, https://git.kernel.org/linus/18bba1843fc7f264f58c9345d00827d082f9c558, https://ubuntu.com/security/notices/USN-6079-1, https://ubuntu.com/security/notices/USN-6091-1, https://ubuntu.com/security/notices/USN-6096-1, https://ubuntu.com/security/notices/USN-6134-1, https://www.cve.org/CVERecord?id=CVE-2023-21102

    Affected packages

    Package

    Name: linux-hwe-edge

    Purl: pkg:deb/ubuntu/[email protected]~16.04.1?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    4.8.0-28.30~16.04.1
    4.8.0-30.32~16.04.1
    4.8.0-32.34~16.04.1
    4.8.0-34.36~16.04.1

    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-2023-21102 | CVE-DB