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    CVE-2014-8595

    arch/x86/x86_emulate/x86_emulate.c in Xen 3.2.1 through 4.4.x does not properly check privileges, which allows local HVM guest users to gain privileges or cause a denial of service (crash) via a crafted (1) CALL, (2) JMP, (3) RETF, (4) LCALL, (5) LJMP, or (6) LRET far branch instruction.

    Published:Nov 18, 2014
    Last Modified:Apr 12, 2025
    EPS:Nov 19, 2014
    EPSS Score:0.00071
    CVSS Score:1.9

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Opensuse
    Product
    Opensuse
    Vendor
    Xen
    Product
    Xen

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-862 Missing Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-665 Exploitation of Thunderbolt Protection Flaws

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    References

    http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html
    http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html
    http://secunia.com/advisories/62537
    http://secunia.com/advisories/62672
    http://support.citrix.com/article/CTX200288
    http://support.citrix.com/article/CTX201794
    http://www.debian.org/security/2015/dsa-3140
    http://www.securityfocus.com/bid/71151
    http://xenbits.xen.org/xsa/advisory-110.html
    https://exchange.xforce.ibmcloud.com/vulnerabilities/98768
    https://security.gentoo.org/glsa/201504-04
    http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html
    http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html
    http://secunia.com/advisories/62537
    http://secunia.com/advisories/62672
    http://support.citrix.com/article/CTX200288
    http://support.citrix.com/article/CTX201794
    http://www.debian.org/security/2015/dsa-3140
    http://www.securityfocus.com/bid/71151
    http://xenbits.xen.org/xsa/advisory-110.html
    https://exchange.xforce.ibmcloud.com/vulnerabilities/98768
    https://security.gentoo.org/glsa/201504-04

    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