RHSA-2014:2029-1: Important: kernel security update

Red Hat Enterprise Linux: Updated kernel packages that fix one security issue are now available for
Red Hat Enterprise Linux 5.9 Extended Update Support.

Red Hat Product Security has rated this update as having Important security
impact. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available from the CVE link in the
References section.
CVE-2014-9322

RHSA-2014:2028-1: Important: kernel security update

Red Hat Enterprise Linux: Updated kernel packages that fix one security issue are now available for
Red Hat Enterprise Linux 6.2 Advanced Update Support.

Red Hat Product Security has rated this update as having Important security
impact. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available from the CVE link in the
References section.
CVE-2014-9322

USN-2449-1: NTP vulnerabilities

Ubuntu Security Notice USN-2449-1

22nd December, 2014

ntp vulnerabilities

A security issue affects these releases of Ubuntu and its
derivatives:

  • Ubuntu 14.10
  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS
  • Ubuntu 10.04 LTS

Summary

Several security issues were fixed in NTP.

Software description

  • ntp
    – Network Time Protocol daemon and utility programs

Details

Neel Mehta discovered that NTP generated weak authentication keys. A remote
attacker could possibly use this issue to brute force the authentication
key and send requests if permitted by IP restrictions. (CVE-2014-9293)

Stephen Roettger discovered that NTP generated weak MD5 keys. A remote
attacker could possibly use this issue to brute force the MD5 key and spoof
a client or server. (CVE-2014-9294)

Stephen Roettger discovered that NTP contained buffer overflows in the
crypto_recv(), ctl_putdata() and configure() functions. In non-default
configurations, a remote attacker could use these issues to cause NTP to
crash, resulting in a denial of service, or possibly execute arbitrary
code. The default compiler options for affected releases should reduce the
vulnerability to a denial of service. In addition, attackers would be
isolated by the NTP AppArmor profile. (CVE-2014-9295)

Stephen Roettger discovered that NTP incorrectly continued processing when
handling certain errors. (CVE-2014-9296)

Update instructions

The problem can be corrected by updating your system to the following
package version:

Ubuntu 14.10:
ntp

1:4.2.6.p5+dfsg-3ubuntu2.14.10.1
Ubuntu 14.04 LTS:
ntp

1:4.2.6.p5+dfsg-3ubuntu2.14.04.1
Ubuntu 12.04 LTS:
ntp

1:4.2.6.p3+dfsg-1ubuntu3.2
Ubuntu 10.04 LTS:
ntp

1:4.2.4p8+dfsg-1ubuntu2.2

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

After a standard system update you need to regenerate any MD5 keys that
were manually created with ntp-keygen.

References

CVE-2014-9293,

CVE-2014-9294,

CVE-2014-9295,

CVE-2014-9296