CVE-2023-39193

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    CVE-2023-39193

    Published: 9 Oct 2023Last Modified: 15 Mar 2026

    Summary:

    Details: A flaw was found in the Netfilter subsystem in the Linux kernel. The sctp_mt_check did not validate the flag_count field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, leading to a crash or information disclosure.

    References: https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html, https://access.redhat.com/errata/RHSA-2024:2950, https://access.redhat.com/errata/RHSA-2024:3138, https://access.redhat.com/security/cve/CVE-2023-39193, https://access.redhat.com/errata/RHSA-2024:2394, https://bugzilla.redhat.com/show_bug.cgi?id=2226787, https://www.zerodayinitiative.com/advisories/ZDI-CAN-18866/

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    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
    CVE-2023-39193 | CVE-DB