CVE-2017-12134

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    CVE-2017-12134

    Published: 24 Aug 2017Last Modified: 16 Apr 2026

    Summary:

    Details: The xen_biovec_phys_mergeable function in drivers/xen/biomerge.c in Xen might allow local OS guest users to corrupt block device data streams and consequently obtain sensitive memory information, cause a denial of service, or gain host OS privileges by leveraging incorrect block IO merge-ability calculation.

    References: https://usn.ubuntu.com/3655-2/, https://usn.ubuntu.com/3655-1/, http://www.openwall.com/lists/oss-security/2017/08/15/4, http://www.securityfocus.com/bid/100343, https://security.gentoo.org/glsa/201801-14, http://www.debian.org/security/2017/dsa-3981, http://www.securitytracker.com/id/1039176, http://xenbits.xen.org/xsa/advisory-229.html, https://bugzilla.redhat.com/show_bug.cgi?id=1477656, https://support.citrix.com/article/CTX225941

    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