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    CVE-2021-38788

    The Background service in Allwinner R818 SoC Android Q SDK V1.0 is used to manage background applications. Malicious apps can use the interface provided by the service to set the number of applications allowed to run in the background to 0 and add themselves to the whitelist, so that once other applications enter the background, they will be forcibly stopped by the system, causing a denial of service.

    Published:Jan 19, 2022
    Last Modified:Nov 21, 2024
    EPS:Jan 19, 2022
    EPSS Score:0.00787
    CVSS Score:7.5

    Affected Products

    Vendor
    Allwinnertech
    Product
    Android Q Sdk
    Vendor
    Allwinnertech
    Product
    R818

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2021-38789 (CVSS 7.5) — Allwinner R818 SoC Android Q SDK V1.0 is affected by an incorrect access control vulnerability that does not c…
    CVE-2021-38787 (CVSS 7.5) — There is an integer overflow in the ION driver "/dev/ion" of Allwinner R818 SoC Android Q SDK V1.0 that could …
    CVE-2021-38786 (CVSS 7.5) — There is a NULL pointer dereference in media/libcedarc/vdecoder of Allwinner R818 SoC Android Q SDK V1.0, whic…
    CVE-2021-38785 (CVSS 7.5) — There is a NULL pointer deference in the Allwinner R818 SoC Android Q SDK V1.0 camera driver /dev/cedar_dev th…
    CVE-2021-38784 (CVSS 7.5) — There is a NULL pointer dereference in the syscall open_exec function of Allwinner R818 SoC Android Q SDK V1.0…
    CVE-2021-38783 (CVSS 7.5) — There is a Out-of-Bound Write in the Allwinner R818 SoC Android Q SDK V1.0 camera driver "/dev/cedar_dev" thro…

    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