Debian: DSA-2543-1: xen-qemu-dm-4.0 security update

    Date08 Sep 2012
    CategoryDebian
    33
    Posted ByLinuxSecurity Advisories
    Multiple vulnerabilities have been discovered in xen-qemu-dm-4.0, the Xen Qemu Device Model virtual machine hardware emulator. The Common Vulnerabilities and Exposures project identifies the following problems:
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    Debian Security Advisory DSA-2543-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    http://www.debian.org/security/                          Raphael Geissert
    September 08, 2012                     http://www.debian.org/security/faq
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    Package        : xen-qemu-dm-4.0
    Vulnerability  : multiple
    Problem type   : local
    Debian-specific: no
    CVE ID         : CVE-2012-3515 CVE-2012-4411
    
    Multiple vulnerabilities have been discovered in xen-qemu-dm-4.0, the Xen
    Qemu Device Model virtual machine hardware emulator. The Common
    Vulnerabilities and Exposures project identifies the following problems:
    
    CVE-2012-3515:
    
        The device model for HVM domains does not properly handle VT100
        escape sequences when emulating certain devices with a virtual
        console backend. An attacker within a guest with access to the
        vulnerable virtual console could overwrite memory of the device
        model and escalate privileges to that of the device model process.
    
    CVE-2012-4411:
    
        The qemu monitor was enabled by default, allowing administrators of
        a guest to access resources of the host, possibly escalate privileges
        or access resources belonging to another guest.
    
    For the stable distribution (squeeze), these problems have been fixed in
    version 4.0.1-2+squeeze2.
    
    The testing distribution (wheezy), and the unstable distribution (sid),
    no longer contain this package.
    
    We recommend that you upgrade your xen-qemu-dm-4.0 packages.
    
    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: http://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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