Debian: DSA-3074-2: php5 regression update

    Date 19 Nov 2014
    128
    Posted By LinuxSecurity Advisories
    The previous update for php5, DSA-3074-1, introduced regression in the sessionclean cron script. The change was intended to fix a potential symlink attack using filenames including the NULL character (Debian bug #766147), but depended on sed package version too recent, not in Wheezy.
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    Debian Security Advisory DSA-3074-2                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                         Yves-Alexis Perez
    November 19, 2014                      https://www.debian.org/security/faq
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    Package        : php5
    
    The previous update for php5, DSA-3074-1, introduced regression in the
    sessionclean cron script. The change was intended to fix a potential
    symlink attack using filenames including the NULL character (Debian bug
    #766147), but depended on sed package version too recent, not in Wheezy.
    
    This update reverts the fix, so people are advised to keep kernel
    symlink protection (sysctl fs.protected_symlinks=1) enabled as it is by
    default on Wheezy, which is enough to prevent successful exploitation.
    
    For the stable distribution (wheezy), this problem has been fixed in
    version 5.4.35-0+deb7u2.
    
    We recommend that you upgrade your php5 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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