CVE-2023-46837

    Dashboard / Vulnerabilities / CVE-2023-46837

    CVE-2023-46837

    Published: 5 Jan 2024Last Modified: 14 Mar 2026

    Summary:

    Details: Arm provides multiple helpers to clean & invalidate the cache for a given region. This is, for instance, used when allocating guest memory to ensure any writes (such as the ones during scrubbing) have reached memory before handing over the page to a guest. Unfortunately, the arithmetics in the helpers can overflow and would then result to skip the cache cleaning/invalidation. Therefore there is no guarantee when all the writes will reach the memory. This undefined behavior was meant to be addressed by XSA-437, but the approach was not sufficient.

    References: https://lists.fedoraproject.org/archives/list/[email protected]/message/JFVKWYQFRUU3CAS53THTUKXEOUDWI42G/, https://lists.fedoraproject.org/archives/list/[email protected]/message/XLL6SQ6IKFYXLYWITYZCRV5IBRK5G35R/, http://xenbits.xen.org/xsa/advisory-447.html, https://xenbits.xenproject.org/xsa/advisory-447.html

    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-2023-46837 | CVE-DB