UBUNTU-CVE-2023-21255

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    UBUNTU-CVE-2023-21255

    Published: 13 Jul 2023Last Modified: 9 Sept 2026
    Upstream:
    CVE-2023-21255
    Aliases:
    USN-6338-1
    USN-6338-2
    USN-6339-1

    Summary:

    Details: In multiple functions of binder.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

    References: https://ubuntu.com/security/CVE-2023-21255, https://git.kernel.org/linus/bdc1c5fac982845a58d28690cdb56db8c88a530d, https://lore.kernel.org/all/[email protected]/, https://source.android.com/docs/security/bulletin/2023-07-01, https://ubuntu.com/security/notices/USN-6338-1, https://ubuntu.com/security/notices/USN-6339-1, https://ubuntu.com/security/notices/USN-6340-1, https://ubuntu.com/security/notices/USN-6344-1, https://ubuntu.com/security/notices/USN-6349-1, https://ubuntu.com/security/notices/USN-6350-1, https://ubuntu.com/security/notices/USN-6351-1, https://ubuntu.com/security/notices/USN-6338-2, https://ubuntu.com/security/notices/USN-6339-2, https://ubuntu.com/security/notices/USN-6340-2, https://ubuntu.com/security/notices/USN-6357-1, https://ubuntu.com/security/notices/USN-6339-3, https://ubuntu.com/security/notices/USN-6339-4, https://ubuntu.com/security/notices/USN-6397-1, https://www.cve.org/CVERecord?id=CVE-2023-21255

    Affected packages

    Package

    Name: linux-hwe-edge

    Purl: pkg:deb/ubuntu/linux-hwe-edge?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-2023-21255 | CVE-DB