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    CVE-2023-21400

    In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.

    Published:Jul 5, 2023
    Last Modified:Feb 13, 2025
    EPS:Jul 12, 2023
    EPSS Score:0.00036
    CVSS Score:6.7

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Google
    Product
    Android

    Exploits

    http://www.openwall.com/lists/oss-security/2023/07/19/2http://www.openwall.com/lists/oss-security/2023/07/19/2

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    References

    http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html
    http://www.openwall.com/lists/oss-security/2023/07/14/2
    http://www.openwall.com/lists/oss-security/2023/07/19/2
    http://www.openwall.com/lists/oss-security/2023/07/19/7
    http://www.openwall.com/lists/oss-security/2023/07/25/7
    https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
    https://security.netapp.com/advisory/ntap-20240119-0012/
    https://source.android.com/security/bulletin/pixel/2023-07-01
    https://www.debian.org/security/2023/dsa-5480
    http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html
    http://www.openwall.com/lists/oss-security/2023/07/14/2
    http://www.openwall.com/lists/oss-security/2023/07/19/2
    http://www.openwall.com/lists/oss-security/2023/07/19/7
    http://www.openwall.com/lists/oss-security/2023/07/25/7
    https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
    https://security.netapp.com/advisory/ntap-20240119-0012/
    https://source.android.com/security/bulletin/pixel/2023-07-01
    https://www.debian.org/security/2023/dsa-5480

    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