CVE-2021-3759

    Dashboard / Vulnerabilities / CVE-2021-3759

    CVE-2021-3759

    Published: 23 Aug 2022Last Modified: 14 Mar 2026

    Summary:

    Details: A memory overflow vulnerability was found in the Linux kernel’s ipc functionality of the memcg subsystem, in the way a user calls the semget function multiple times, creating semaphores. This flaw allows a local user to starve the resources, causing a denial of service. The highest threat from this vulnerability is to system availability.

    References: https://lore.kernel.org/linux-mm/1626333284-1404-1-git-send-email-nglaive%40gmail.com/, https://access.redhat.com/security/cve/CVE-2021-3759, https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html, https://bugzilla.redhat.com/show_bug.cgi?id=1999675

    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-2021-3759 | CVE-DB