UBUNTU-CVE-2021-37576

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    UBUNTU-CVE-2021-37576

    Published: 26 Jul 2021Last Modified: 9 Sept 2026
    Upstream:
    CVE-2021-37576
    Aliases:
    USN-5091-1
    USN-5092-1
    USN-5092-2

    Summary:

    Details: arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest OS users to cause host OS memory corruption via rtas_args.nargs, aka CID-f62f3c20647e.

    References: https://ubuntu.com/security/CVE-2021-37576, https://git.kernel.org/linus/f62f3c20647ebd5fb6ecb8f0b477b9281c44c10a, https://lore.kernel.org/linuxppc-dev/[email protected]/T/#u, https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f62f3c20647ebd5fb6ecb8f0b477b9281c44c10a, https://ubuntu.com/security/notices/USN-5091-1, https://ubuntu.com/security/notices/USN-5092-1, https://ubuntu.com/security/notices/USN-5092-2, https://ubuntu.com/security/notices/USN-5094-1, https://www.cve.org/CVERecord?id=CVE-2021-37576

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/linux?arch=source&distro=esm-infra-legacy%2Ftrusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    3.11.0-12.19

    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-2021-37576 | CVE-DB