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    Debian: DSA-3440-1: sudo security update

    Date
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    When sudo is configured to allow a user to edit files under a directory that they can already write to without using sudo, they can actually edit (read and write) arbitrary files. Daniel Svartman reported that a configuration like this might be introduced unintentionally if the
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    Debian Security Advisory DSA-3440-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                            Ben Hutchings
    January 11, 2016                      https://www.debian.org/security/faq
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    Package        : sudo
    CVE ID         : CVE-2015-5602
    Debian Bug     : 804149
    
    When sudo is configured to allow a user to edit files under a directory
    that they can already write to without using sudo, they can actually
    edit (read and write) arbitrary files. Daniel Svartman reported that a
    configuration like this might be introduced unintentionally if the
    editable files are specified using wildcards, for example:
    
        operator ALL=(root) sudoedit /home/*/*/test.txt
    
    The default behaviour of sudo has been changed so that it does not allow
    editing of a file in a directory that the user can write to, or that is
    reached by following a symlink in a directory that the user can write
    to. These restrictions can be disabled, but this is strongly
    discouraged.
    
    For the oldstable distribution (wheezy), this problem has been fixed
    in version 1.8.5p2-1+nmu3+deb7u1.
    
    For the stable distribution (jessie), this problem has been fixed in
    version 1.8.10p3-1+deb8u3.
    
    For the testing distribution (stretch), this problem has been fixed
    in version 1.8.15-1.1.
    
    For the unstable distribution (sid), this problem has been fixed in
    version 1.8.15-1.1.
    
    We recommend that you upgrade your sudo 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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