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    CVE-2021-28964

    A race condition was discovered in get_old_root in fs/btrfs/ctree.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (BUG) because of a lack of locking on an extent buffer before a cloning operation, aka CID-dbcc7d57bffc.

    Published:Mar 16, 2021
    Last Modified:Nov 21, 2024
    EPS:Mar 22, 2021
    EPSS Score:0.00092
    CVSS Score:4.7

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Netapp
    Product
    Aff A250
    Vendor
    Netapp
    Product
    Aff A250 Firmware
    Vendor
    Netapp
    Product
    Cloud Backup
    Vendor
    Netapp
    Product
    Fas 500f
    Vendor
    Netapp
    Product
    Fas 500f Firmware
    Vendor
    Netapp
    Product
    Solidfire Baseboard Management Controller Firmware

    Exploits

    No exploit reference

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    References

    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=dbcc7d57bffc0c8cac9dac11bec548597d59a6a5
    https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
    https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4VCKIOXCOZGXBEZMO5LGGV5MWCHO6FT3/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PTRNPQTZ4GVS46SZ4OBXY5YDOGVPSTGQ/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T2S3I4SLRNRUQDOFYUS6IUAZMQNMPNLG/
    https://security.netapp.com/advisory/ntap-20210430-0003/
    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=dbcc7d57bffc0c8cac9dac11bec548597d59a6a5
    https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
    https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4VCKIOXCOZGXBEZMO5LGGV5MWCHO6FT3/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PTRNPQTZ4GVS46SZ4OBXY5YDOGVPSTGQ/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T2S3I4SLRNRUQDOFYUS6IUAZMQNMPNLG/
    https://security.netapp.com/advisory/ntap-20210430-0003/

    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