CVE-2020-35505

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    CVE-2020-35505

    Published: 28 May 2021Last Modified: 8 Jul 2026

    Summary:

    Details: A NULL pointer dereference flaw was found in the am53c974 SCSI host bus adapter emulation of QEMU in versions before 6.0.0. This issue occurs while handling the 'Information Transfer' command. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

    References: http://www.openwall.com/lists/oss-security/2021/04/16/3, https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html, https://security.gentoo.org/glsa/202208-27, https://security.netapp.com/advisory/ntap-20210713-0006/, https://bugzilla.redhat.com/show_bug.cgi?id=1909769, https://www.openwall.com/lists/oss-security/2021/04/16/3

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -609d7596524ab204ccd71ef42c9eee4c7c338ea4

    Affected versions

    6.0.0-rc1
    6.0.0-rc2

    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-2020-35505 | CVE-DB