CVE-2021-4158

    Dashboard / Vulnerabilities / CVE-2021-4158

    CVE-2021-4158

    Published: 24 Aug 2022Last Modified: 9 Jul 2026

    Summary:

    Details: A NULL pointer dereference issue was found in the ACPI code of QEMU. A malicious, privileged user within the guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.

    References: https://access.redhat.com/security/cve/CVE-2021-4158, https://bugzilla.redhat.com/show_bug.cgi?id=2035002, https://gitlab.com/qemu-project/qemu/-/commit/9bd6565ccee68f72d5012e24646e12a1c662827e, https://www.mail-archive.com/qemu-devel%40nongnu.org/msg857944.html, https://gitlab.com/qemu-project/qemu/-/issues/770

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 609d7596524ab204ccd71ef42c9eee4c7c338ea4
    Fixed -823a3f11fb8f04c3c3cc0f95f968fef1bfc6534f

    Affected versions

    v7.0.0-rc4
    v7.0.0-rc3
    v7.0.0-rc2
    v7.0.0-rc1
    v7.0.0-rc0

    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-2021-4158 | CVE-DB