Debian: DSA-2545-1: qemu security update

    Date08 Sep 2012
    CategoryDebian
    32
    Posted ByLinuxSecurity Advisories
    Multiple vulnerabilities have been discovered in qemu, a fast processor emulator. The Common Vulnerabilities and Exposures project identifies the following problems:
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    Debian Security Advisory DSA-2545-1                   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        : qemu
    Vulnerability  : multiple
    Problem type   : local
    Debian-specific: no
    CVE ID         : CVE-2012-2652 CVE-2012-3515
    
    Multiple vulnerabilities have been discovered in qemu, a fast processor
    emulator. The Common Vulnerabilities and Exposures project identifies the
    following problems:
    
    CVE-2012-2652:
    
        The snapshot mode of QEMU (-snapshot) incorrectly handles temporary
        files used to store the current state, making it vulnerable to     
        symlink attacks (including arbitrary file overwriting and guest 
        information disclosure) due to a race condition.
    
    CVE-2012-3515:
    
        QEMU 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 QEMU and escalate privileges to that of the qemu process.
    
    For the stable distribution (squeeze), these problems have been fixed in
    version 0.12.5+dfsg-3squeeze2.
    
    For the testing distribution (wheezy), and the unstable distribution
    (sid), these problems will been fixed soon.
    
    We recommend that you upgrade your qemu 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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