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    CVE-2021-4149

    A vulnerability was found in btrfs_alloc_tree_b in fs/btrfs/extent-tree.c in the Linux kernel due to an improper lock operation in btrfs. In this flaw, a user with a local privilege may cause a denial of service (DOS) due to a deadlock problem.

    Published:Oct 18, 2021
    Last Modified:Nov 21, 2024
    EPS:Mar 23, 2022
    EPSS Score:0.00022
    CVSS Score:5.5

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Linux
    Product
    Linux Kernel

    Exploits

    https://lkml.org/lkml/2021/10/18/885https://lkml.org/lkml/2021/9/13/2565https://lkml.org/lkml/2021/10/18/885https://lkml.org/lkml/2021/9/13/2565

    Common Weakness Enumeration

    CWE-667 Improper Locking

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    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