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    CVE-2016-6258

    The PV pagetable code in arch/x86/mm.c in Xen 4.7.x and earlier allows local 32-bit PV guest OS administrators to gain host OS privileges by leveraging fast-paths for updating pagetable entries.

    Published:Jul 26, 2016
    Last Modified:Apr 12, 2025
    EPS:Aug 2, 2016
    EPSS Score:0.00112
    CVSS Score:8.8

    Affected Products

    Vendor
    Citrix
    Product
    Xenserver
    Vendor
    Xen
    Product
    Xen

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-284 Improper Access Control

    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://support.citrix.com/article/CTX214954
    http://www.debian.org/security/2016/dsa-3633
    http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
    http://www.securityfocus.com/bid/92131
    http://www.securitytracker.com/id/1036446
    http://xenbits.xen.org/xsa/advisory-182.html
    http://xenbits.xen.org/xsa/xsa182-4.5.patch
    http://xenbits.xen.org/xsa/xsa182-4.6.patch
    http://xenbits.xen.org/xsa/xsa182-unstable.patch
    https://security.gentoo.org/glsa/201611-09
    http://support.citrix.com/article/CTX214954
    http://www.debian.org/security/2016/dsa-3633
    http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
    http://www.securityfocus.com/bid/92131
    http://www.securitytracker.com/id/1036446
    http://xenbits.xen.org/xsa/advisory-182.html
    http://xenbits.xen.org/xsa/xsa182-4.5.patch
    http://xenbits.xen.org/xsa/xsa182-4.6.patch
    http://xenbits.xen.org/xsa/xsa182-unstable.patch
    https://security.gentoo.org/glsa/201611-09

    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