Debian: DSA-2843-1: graphviz security update

    Date13 Jan 2014
    CategoryDebian
    23
    Posted ByLinuxSecurity Advisories
    Two buffer overflow vulnerabilities were reported in Graphviz, a rich collection of graph drawing tools. The Common Vulnerabilities and Exposures project identifies the following issues:
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-2843-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    http://www.debian.org/security/                      Salvatore Bonaccorso
    January 13, 2014                       http://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    Package        : graphviz
    Vulnerability  : buffer overflow
    Problem type   : local (remote)
    Debian-specific: no
    CVE ID         : CVE-2014-0978 CVE-2014-1236
    Debian Bug     : 734745
    
    Two buffer overflow vulnerabilities were reported in Graphviz, a rich
    collection of graph drawing tools. The Common Vulnerabilities and
    Exposures project identifies the following issues:
    
    CVE-2014-0978
    
        It was discovered that user-supplied input used in the yyerror()
        function in lib/cgraph/scan.l is not bound-checked before beeing
        copied into an insufficiently sized memory buffer. A
        context-dependent attacker could supply a specially crafted input
        file containing a long line to cause a stack-based buffer overlow,
        resulting in a denial of service (application crash) or potentially
        allowing the execution of arbitrary code.
    
    CVE-2014-1236
    
        Sebastian Krahmer reported an overflow condition in the chkNum()
        function in lib/cgraph/scan.l that is triggered as the used regular
        expression accepts an arbitrary long digit list. With a specially
        crafted input file, a context-dependent attacker can cause a
        stack-based buffer overflow, resulting in a denial of service
        (application crash) or potentially allowing the execution of
        arbitrary code.
    
    For the oldstable distribution (squeeze), these problems have been fixed in
    version 2.26.3-5+squeeze2.
    
    For the stable distribution (wheezy), these problems have been fixed in
    version 2.26.3-14+deb7u1.
    
    For the unstable distribution (sid), these problems will be fixed soon.
    
    We recommend that you upgrade your graphviz 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.