CVE-2021-3764

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    CVE-2021-3764

    Published: 23 Aug 2022Last Modified: 16 Apr 2026

    Summary:

    Details: A memory leak flaw was found in the Linux kernel's ccp_run_aes_gcm_cmd() function that allows an attacker to cause a denial of service. The vulnerability is similar to the older CVE-2019-18808. The highest threat from this vulnerability is to system availability.

    References: https://security-tracker.debian.org/tracker/CVE-2021-3764, https://access.redhat.com/security/cve/CVE-2021-3764, https://bugzilla.redhat.com/show_bug.cgi?id=1997467, https://github.com/torvalds/linux/commit/505d9dcb0f7ddf9d075e729523a33d38642ae680

    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-2021-3764 | CVE-DB