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    CVE-2022-42331

    x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work (XSA-254), one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be attacked with a variety of speculative attacks.

    Published:Mar 21, 2023
    Last Modified:Feb 13, 2025
    EPS:Mar 21, 2023
    EPSS Score:0.00038
    CVSS Score:5.5

    Affected Products

    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Xen
    Product
    Xen

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://www.openwall.com/lists/oss-security/2023/03/21/3
    http://xenbits.xen.org/xsa/advisory-429.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5L6PM4RE7MUE6OWA32ZVOXCP235RM2TM/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APBMS2Q6746AXAFAITNJMGBNFGNMVLWR/
    https://security.gentoo.org/glsa/202402-07
    https://www.debian.org/security/2023/dsa-5378
    https://xenbits.xenproject.org/xsa/advisory-429.txt
    http://www.openwall.com/lists/oss-security/2023/03/21/3
    http://xenbits.xen.org/xsa/advisory-429.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5L6PM4RE7MUE6OWA32ZVOXCP235RM2TM/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APBMS2Q6746AXAFAITNJMGBNFGNMVLWR/
    https://security.gentoo.org/glsa/202402-07
    https://www.debian.org/security/2023/dsa-5378
    https://xenbits.xenproject.org/xsa/advisory-429.txt

    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