Debian: DSA-3108-1: ntp security update

    Date 20 Dec 2014
    100
    Posted By LinuxSecurity Advisories
    Several vulnerabilities were discovered in the ntp package, an implementation of the Network Time Protocol. CVE-2014-9293
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    Debian Security Advisory DSA-3108-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                            Florian Weimer
    December 20, 2014                      https://www.debian.org/security/faq
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    Package        : ntp
    CVE ID         : CVE-2014-9293 CVE-2014-9294 CVE-2014-9295 CVE-2014-9296
    Debian Bug     : 773576
    
    Several vulnerabilities were discovered in the ntp package, an
    implementation of the Network Time Protocol.
    
    CVE-2014-9293
    
        ntpd generated a weak key for its internal use, with full
        administrative privileges.  Attackers could use this key to
        reconfigure ntpd (or to exploit other vulnerabilities).
    
    CVE-2014-9294
    
        The ntp-keygen utility generated weak MD5 keys with insufficient
        entropy.
    
    CVE-2014-9295
    
        ntpd had several buffer overflows (both on the stack and in the
        data section), allowing remote authenticated attackers to crash
        ntpd or potentially execute arbitrary code.
    
    CVE-2014-9296
    
        The general packet processing function in ntpd did not handle an
        error case correctly.
    
    The default ntpd configuration in Debian restricts access to localhost
    (and possible the adjacent network in case of IPv6).
    
    Keys explicitly generated by "ntp-keygen -M" should be regenerated.
    
    For the stable distribution (wheezy), these problems have been fixed in
    version 1:4.2.6.p5+dfsg-2+deb7u1.
    
    We recommend that you upgrade your ntp 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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