UBUNTU-CVE-2021-38201

    Dashboard / Vulnerabilities / UBUNTU-CVE-2021-38201

    UBUNTU-CVE-2021-38201

    Published: 8 Aug 2021Last Modified: 4 Feb 2026
    Upstream:
    CVE-2021-38201

    Summary:

    Details: net/sunrpc/xdr.c in the Linux kernel before 5.13.4 allows remote attackers to cause a denial of service (xdr_set_page_base slab-out-of-bounds access) by performing many NFS 4.2 READ_PLUS operations.

    References: https://ubuntu.com/security/CVE-2021-38201, https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4, https://github.com/torvalds/linux/commit/6d1c0f3d28f98ea2736128ed3e46821496dc3a8c, https://ubuntu.com/security/notices/USN-5092-1, https://ubuntu.com/security/notices/USN-5092-2, https://ubuntu.com/security/notices/USN-5096-1, https://www.cve.org/CVERecord?id=CVE-2021-38201

    Affected packages

    Package

    Name: linux-hwe-edge

    Purl: pkg:deb/ubuntu/[email protected]~16.04.1?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    4.8.0-28.30~16.04.1
    4.8.0-30.32~16.04.1
    4.8.0-32.34~16.04.1
    4.8.0-34.36~16.04.1

    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
    UBUNTU-CVE-2021-38201 | CVE-DB