UBUNTU-CVE-2012-0045

    Dashboard / Vulnerabilities / UBUNTU-CVE-2012-0045

    UBUNTU-CVE-2012-0045

    Published: 13 Jan 2012Last Modified: 4 Feb 2026
    Upstream:
    CVE-2012-0045
    Aliases:
    USN-1405-1
    USN-1406-1
    USN-1407-1

    Summary:

    Details: The em_syscall function in arch/x86/kvm/emulate.c in the KVM implementation in the Linux kernel before 3.2.14 does not properly handle the 0f05 (aka syscall) opcode, which allows guest OS users to cause a denial of service (guest OS crash) via a crafted application, as demonstrated by an NASM file.

    References: https://ubuntu.com/security/CVE-2012-0045, http://www.openwall.com/lists/oss-security/2012/01/11/4, https://lkml.org/lkml/2011/12/28/170, http://www.spinics.net/lists/kvm/msg66633.html, https://ubuntu.com/security/notices/USN-1407-1, https://ubuntu.com/security/notices/USN-1405-1, https://ubuntu.com/security/notices/USN-1406-1, https://ubuntu.com/security/notices/USN-1421-1, https://ubuntu.com/security/notices/USN-1422-1, https://ubuntu.com/security/notices/USN-1425-1, https://ubuntu.com/security/notices/USN-1426-1, https://ubuntu.com/security/notices/USN-1431-1, https://ubuntu.com/security/notices/USN-1433-1, https://ubuntu.com/security/notices/USN-1440-1, https://www.cve.org/CVERecord?id=CVE-2012-0045

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.11.0-12.19

    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
    UBUNTU-CVE-2012-0045 | CVE-DB