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    CVE-2023-6931

    A heap out-of-bounds write vulnerability in the Linux kernel's Performance Events system component can be exploited to achieve local privilege escalation. A perf_event's read_size can overflow, leading to an heap out-of-bounds increment or write in perf_read_group(). We recommend upgrading past commit 382c27f4ed28f803b1f1473ac2d8db0afc795a1b.

    Published:Nov 29, 2023
    Last Modified:Aug 17, 2026
    EPS:Dec 19, 2023
    EPSS Score:0.00715
    CVSS Score:7.8

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Logging
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Redhat
    Product
    Rhev Hypervisor

    Exploits

    https://github.com/K0n9-log/CVE-2023-6931

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=382c27f4ed28f803b1f1473ac2d8db0afc795a1b
    https://kernel.dance/382c27f4ed28f803b1f1473ac2d8db0afc795a1b
    https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
    https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
    https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=382c27f4ed28f803b1f1473ac2d8db0afc795a1b
    https://kernel.dance/382c27f4ed28f803b1f1473ac2d8db0afc795a1b
    https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
    https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
    https://cert-portal.siemens.com/productcert/html/ssa-265688.html
    https://cert-portal.siemens.com/productcert/html/ssa-398330.html
    https://cert-portal.siemens.com/productcert/html/ssa-613116.html
    https://cert-portal.siemens.com/productcert/html/ssa-794697.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