UBUNTU-CVE-2021-39686

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    UBUNTU-CVE-2021-39686

    Published: 16 Mar 2022Last Modified: 14 Oct 2026
    Upstream:
    CVE-2021-39686

    Summary:

    Details: In several functions of binder.c, there is a possible way to represent the wrong domain to SELinux due to a race condition. 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-200688826References: Upstream kernel

    References: https://ubuntu.com/security/CVE-2021-39686, https://source.android.com/security/bulletin/2022-03-01, https://android.googlesource.com/kernel/common/+/d49297739550, https://android.googlesource.com/kernel/common/+/3af7a2f61023, https://android.googlesource.com/kernel/common/+/11db2de0af2a, https://android.googlesource.com/kernel/common/+/a4eacf3227bd, https://www.cve.org/CVERecord?id=CVE-2021-39686

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/linux?arch=source&distro=esm-infra-legacy%2Ftrusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    3.11.0-12.19

    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