Debian: DSA-3140-1: xen security update

    Date27 Jan 2015
    CategoryDebian
    31
    Posted ByLinuxSecurity Advisories
    Multiple security issues have been discovered in the Xen virtualisation solution which may result in denial of service, information disclosure or privilege escalation.
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    Debian Security Advisory DSA-3140-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    http://www.debian.org/security/                        Moritz Muehlenhoff
    January 27, 2015                       http://www.debian.org/security/faq
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    Package        : xen
    CVE ID         : CVE-2014-8594 CVE-2014-8595 CVE-2014-8866 CVE-2014-8867 
                     CVE-2014-9030
    
    Multiple security issues have been discovered in the Xen virtualisation
    solution which may result in denial of service, information disclosure
    or privilege escalation.
    
    CVE-2014-8594
    
        Roger Pau Monne and Jan Beulich discovered that incomplete
        restrictions on MMU update hypercalls may result in privilege
        escalation.
    
    CVE-2014-8595
    
        Jan Beulich discovered that missing privilege level checks in the
        x86 emulation of far branches may result in privilege escalation.
    
    CVE-2014-8866
    
        Jan Beulich discovered that an error in compatibility mode hypercall
        argument translation may result in denial of service.
    
    CVE-2014-8867
    
        Jan Beulich discovered that an insufficient restriction in
        acceleration support for the "REP MOVS" instruction may result in
        denial of service.
    
    CVE-2014-9030
    
        Andrew Cooper discovered a page reference leak in MMU_MACHPHYS_UPDATE
        handling, resulting in denial of service.
    
    For the stable distribution (wheezy), these problems have been fixed in
    version 4.1.4-3+deb7u4.
    
    For the upcoming stable distribution (jessie), these problems have been
    fixed in version 4.4.1-4.
    
    For the unstable distribution (sid), these problems have been fixed in
    version 4.4.1-4.
    
    We recommend that you upgrade your xen packages.
    
    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://www.debian.org/security/
    
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    
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