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    CVE-2023-2612

    Jean-Baptiste Cayrou discovered that the shiftfs file system in the Ubuntu Linux kernel contained a race condition when handling inode locking in some situations. A local attacker could use this to cause a denial of service (kernel deadlock).

    Published:May 30, 2023
    Last Modified:Feb 13, 2025
    EPS:May 30, 2023
    EPSS Score:0.00019
    CVSS Score:4.4

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-667 Improper Locking

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    References

    http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html
    https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/kinetic/commit/?id=02b47547824b1cd0d55c6744f91886f04de8947e
    https://ubuntu.com/security/CVE-2023-2612
    https://ubuntu.com/security/notices/USN-6122-1
    https://ubuntu.com/security/notices/USN-6123-1
    https://ubuntu.com/security/notices/USN-6124-1
    https://ubuntu.com/security/notices/USN-6127-1
    http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html
    https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/kinetic/commit/?id=02b47547824b1cd0d55c6744f91886f04de8947e
    https://ubuntu.com/security/CVE-2023-2612
    https://ubuntu.com/security/notices/USN-6122-1
    https://ubuntu.com/security/notices/USN-6123-1
    https://ubuntu.com/security/notices/USN-6124-1
    https://ubuntu.com/security/notices/USN-6127-1

    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