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    CVE-2021-3752

    A use-after-free flaw was found in the Linux kernel’s Bluetooth subsystem in the way user calls connect to the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the system or escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

    Published:Sep 14, 2021
    Last Modified:Nov 21, 2024
    EPS:Feb 16, 2022
    EPSS Score:0.00031
    CVSS Score:7.1

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Netapp
    Product
    H300e
    Vendor
    Netapp
    Product
    H300e Firmware
    Vendor
    Netapp
    Product
    H300s
    Vendor
    Netapp
    Product
    H300s Firmware
    Vendor
    Netapp
    Product
    H410c
    Vendor
    Netapp
    Product
    H410c Firmware
    Vendor
    Netapp
    Product
    H410s
    Vendor
    Netapp
    Product
    H410s Firmware
    Vendor
    Netapp
    Product
    H500e
    Vendor
    Netapp
    Product
    H500e Firmware
    Vendor
    Netapp
    Product
    H500s
    Vendor
    Netapp
    Product
    H500s Firmware
    Vendor
    Netapp
    Product
    H700e
    Vendor
    Netapp
    Product
    H700e Firmware
    Vendor
    Netapp
    Product
    H700s
    Vendor
    Netapp
    Product
    H700s Firmware
    Vendor
    Oracle
    Product
    Communications Cloud Native Core Binding Support Function
    Vendor
    Oracle
    Product
    Communications Cloud Native Core Network Exposure Function
    Vendor
    Oracle
    Product
    Communications Cloud Native Core Policy
    Vendor
    Redhat
    Product
    3scale
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux For Real Time
    Vendor
    Redhat
    Product
    Enterprise Linux For Real Time For Nfv
    Vendor
    Redhat
    Product
    Rhel Extras Rt
    Vendor
    Redhat
    Product
    Virtualization Host

    Exploits

    https://www.openwall.com/lists/oss-security/2021/09/15/4https://www.openwall.com/lists/oss-security/2021/09/15/4

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    References

    https://bugzilla.redhat.com/show_bug.cgi?id=1999544
    https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html
    https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
    https://lore.kernel.org/lkml/20211115165435.133245729%40linuxfoundation.org/
    https://security.netapp.com/advisory/ntap-20220318-0009/
    https://www.debian.org/security/2022/dsa-5096
    https://www.openwall.com/lists/oss-security/2021/09/15/4
    https://www.oracle.com/security-alerts/cpujul2022.html
    https://bugzilla.redhat.com/show_bug.cgi?id=1999544
    https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html
    https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
    https://lore.kernel.org/lkml/20211115165435.133245729%40linuxfoundation.org/
    https://security.netapp.com/advisory/ntap-20220318-0009/
    https://www.debian.org/security/2022/dsa-5096
    https://www.openwall.com/lists/oss-security/2021/09/15/4
    https://www.oracle.com/security-alerts/cpujul2022.html

    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