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    CVE-2017-12134

    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.

    Published:Aug 15, 2017
    Last Modified:Apr 20, 2025
    EPS:Aug 24, 2017
    EPSS Score:0.00286
    CVSS Score:8.8

    Affected Products

    Vendor
    Citrix
    Product
    Xenserver
    Vendor
    Xen
    Product
    Xen

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-682 Incorrect Calculation

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-128 Integer Attacks
    CAPEC-129 Pointer Manipulation

    Related CVEs

    CVE-2024-5661 (CVSS 6) — An issue has been identified in both XenServer 8 and Citrix Hypervisor 8.2 CU1 LTSR which may allow a maliciou…
    CVE-2012-4606 (CVSS 7.8) — Citrix XenServer 4.1, 6.0, 5.6 SP2, 5.6 Feature Pack 1, 5.6 Common Criteria, 5.6, 5.5, 5.0, and 5.0 Update 3 c…
    CVE-2014-3798 (CVSS 6.5) — The Windows Guest Tools in Citrix XenServer 6.2 SP1 and earlier allows remote attackers to cause a denial of s…
    CVE-2018-19962 (CVSS 7.8) — An issue was discovered in Xen through 4.11.x on AMD x86 platforms, possibly allowing guest OS users to gain h…
    CVE-2018-19961 (CVSS 7.8) — An issue was discovered in Xen through 4.11.x on AMD x86 platforms, possibly allowing guest OS users to gain h…
    CVE-2018-19965 (CVSS 5.6) — An issue was discovered in Xen through 4.11.x allowing 64-bit PV guest OS users to cause a denial of service (…
    CVE-2018-14007 (CVSS 9.8) — Citrix XenServer 7.1 and newer allows Directory Traversal.…
    CVE-2018-11053 (CVSS 6.5) — Dell EMC iDRAC Service Module for all supported Linux and XenServer versions v3.0.1, v3.0.2, v3.1.0, v3.2.0, w…
    CVE-2018-3665 (CVSS 5.6) — System software utilizing Lazy FP state restore technique on systems using Intel Core-based microprocessors ma…
    CVE-2018-8897 (CVSS 7.8) — A statement in the System Programming Guide of the Intel 64 and IA-32 Architectures Software Developer's Manua…

    References

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

    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