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    Linux Security

    Debian: DSA-2613-1: rails security update

    Date 30 Jan 2013
    125
    Posted By LinuxSecurity Advisories
    Lawrence Pit discovered that Ruby on Rails, a web development framenwork, is vulnerable to a flaw in the parsing of JSON to YAML. Using a specially crafted payload attackers can trick the backend into decoding a subset of YAML.
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-2613-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                           Thijs Kinkhorst
    January 29, 2013                       https://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    Package        : rails
    Vulnerability  : insufficient input validation
    Problem type   : remote
    Debian-specific: no
    CVE ID         : CVE-2013-0333
    Debian Bug     : 699226
    
    Lawrence Pit discovered that Ruby on Rails, a web development framenwork,
    is vulnerable to a flaw in the parsing of JSON to YAML. Using a specially
    crafted payload attackers can trick the backend into decoding a subset of
    YAML.
    
    The vulnerability has been addressed by removing the YAML backend and
    adding the OkJson backend.
    
    For the stable distribution (squeeze), this problem has been fixed in
    version 2.3.5-1.2+squeeze6.
    
    For the testing distribution (wheezy), this problem will be fixed soon.
    
    For the unstable distribution (sid), this problem has been fixed in
    version 2.3.14-6 of the ruby-activesupport-2.3 package.
    
    The 3.2 version of rails as found in Debian wheezy and sid is not
    affected by the problem.
    
    We recommend that you upgrade your rails 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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