| Description: | Summary:
The remote host is missing an update for the 'ntp' package(s) announced via the USN-3707-2 advisory.
Vulnerability Insight:
USN-3707-1 and USN-3349-1 fixed several vulnerabilities in NTP. This update
provides the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
Miroslav Lichvar discovered that NTP incorrectly handled certain spoofed
addresses when performing rate limiting. A remote attacker could possibly
use this issue to perform a denial of service. (CVE-2016-7426)
Matthew Van Gundy discovered that NTP incorrectly handled certain crafted
broadcast mode packets. A remote attacker could possibly use this issue to
perform a denial of service. (CVE-2016-7427, CVE-2016-7428)
Matthew Van Gundy discovered that NTP incorrectly handled certain control
mode packets. A remote attacker could use this issue to set or unset traps.
(CVE-2016-9310)
Matthew Van Gundy discovered that NTP incorrectly handled the trap service.
A remote attacker could possibly use this issue to cause NTP to crash, resulting
in a denial of service. (CVE-2016-9311)
It was discovered that the NTP legacy DPTS refclock driver incorrectly handled
the /dev/datum device. A local attacker could possibly use this issue to cause
a denial of service. (CVE-2017-6462)
It was discovered that NTP incorrectly handled certain invalid settings in a
:config directive. A remote authenticated user could possibly use this issue
to cause NTP to crash, resulting in a denial of service. (CVE-2017-6463)
Michael Macnair discovered that NTP incorrectly handled certain responses.
A remote attacker could possibly use this issue to execute arbitrary code.
(CVE-2018-7183)
Miroslav Lichvar discovered that NTP incorrectly handled certain
zero-origin timestamps. A remote attacker could possibly use this issue to
cause a denial of service. (CVE-2018-7185)
Affected Software/OS:
'ntp' package(s) on Ubuntu 12.04.
Solution:
Please install the updated package(s).
CVSS Score:
7.5
CVSS Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P
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