ntp - incomplete fix

Several vulnerabilities were discovered in the ntp package, an
implementation of the Network Time Protocol. The Common Vulnerabilities
and Exposures project identifies the following problems:

• CVE-2014-9750
  Stephen Roettger of the Google Security Team, Sebastian Krahmer of
  the SUSE Security Team and Harlan Stenn of Network Time Foundation
  discovered that the length value in extension fields is not properly
  validated in several code paths in ntp_crypto.c, which could lead to
  information leakage or denial of service (ntpd crash).
• CVE-2014-9751
  Stephen Roettger of the Google Security Team reported that ACLs
  based on IPv6 ::1 addresses can be bypassed.

For the stable distribution (wheezy), these problems have been fixed in
version 1:4.2.6.p5+dfsg-2+deb7u2.

For the unstable distribution (sid), these problems have been fixed in
version 1:4.2.6.p5+dfsg-4.

We recommend that you upgrade your ntp packages.