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[SECURITY] [DLA 116-1] ntp security update

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Package : ntp

Version : 4.2.6.p2+dfsg-1+deb6u1

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 oldstable distribution (squeeze), these problems have been fixed in

version 4.2.6.p2+dfsg-1+deb6u1.

 

We recommend that you upgrade your heirloom-mailx packages.

 

Thanks to the Florian Weimer for the Red Hat security update.

 

 

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