Debian: DSA-2769-1: kfreebsd-9 security update

    Date08 Oct 2013
    CategoryDebian
    29
    Posted ByLinuxSecurity Advisories
    Several vulnerabilities have been discovered in the FreeBSD kernel that may lead to a denial of service or privilege escalation. The Common Vulnerabilities and Exposures project identifies the following problems:
    
    - ----------------------------------------------------------------------
    Debian Security Advisory DSA-2769-1                This email address is being protected from spambots. You need JavaScript enabled to view it.
    http://www.debian.org/security/                         Aurelien Jarno
    October 08, 2013                    http://www.debian.org/security/faq
    - ----------------------------------------------------------------------
    
    Package        : kfreebsd-9
    Vulnerability  : privilege escalation/denial of service
    Problem type   : local
    Debian-specific: no
    CVE Id(s)      : CVE-2013-5691 CVE-2013-5710
    
    Several vulnerabilities have been discovered in the FreeBSD kernel that may
    lead to a denial of service or privilege escalation. The Common
    Vulnerabilities and Exposures project identifies the following problems:
    
    CVE-2013-5691
    
        Loganaden Velvindron and Gleb Smirnoff discovered that the SIOCSIFADDR,
        SIOCSIFBRDADDR, SIOCSIFDSTADDR and SIOCSIFNETMASK ioctl requests do not
        perform input validation or verify the caller's credentials.
        Unprivileged user with the ability to run arbitrary code can cause any
        network interface in the system to perform the link layer actions
        associated with the above ioctl requests or trigger a kernel panic by
        passing a specially crafted address structure which causes a network
        interface driver to dereference an invalid pointer.
    
    CVE-2013-5710
    
        Konstantin Belousov discovered that the nullfs(5) implementation of the
        VOP_LINK(9) VFS operation does not check whether the source and target of
        the link are both in the same nullfs instance. It is therefore possible to
        create a hardlink from a location in one nullfs instance to a file in
        another, as long as the underlying (source) filesystem is the same. If
        multiple nullfs views into the same filesystem are mounted in different
        locations, a user may gain write access to files which are nominally on
        a read-only filesystem.
    
    For the stable distribution (wheezy), these problems have been fixed in
    version 9.0-10+deb70.4.
    
    We recommend that you upgrade your kfreebsd-9 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.
    
    You are not authorised to post comments.

    Comments powered by CComment

    LinuxSecurity Poll

    What do you think of the articles on LinuxSecurity?

    No answer selected. Please try again.
    Please select either existing option or enter your own, however not both.
    Please select minimum 0 answer(s) and maximum 3 answer(s).
    /main-polls/24-what-do-you-think-of-the-quality-of-the-articles-on-linuxsecurity?task=poll.vote&format=json
    24
    radio
    [{"id":"87","title":"Excellent, don't change a thing!","votes":"13","type":"x","order":"1","pct":52,"resources":[]},{"id":"88","title":"Should be more technical","votes":"4","type":"x","order":"2","pct":16,"resources":[]},{"id":"89","title":"Should include more HOWTOs","votes":"8","type":"x","order":"3","pct":32,"resources":[]}]["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"]["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"]350
    bottom200

    We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.