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NTP Local Buffer Overflow And Sybil Vulnerabilities

Information

Severity

Severity

High

Family

Family

General

CVSSv2 Base

CVSSv2 Base

7.5

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

5 years ago

Modified

Modified

4 years ago

Summary

The host is running NTP and is prone to a local buffer overflow and sybil vulnerabilities.

Insight

Insight

Multiple flaws are due to, - An insufficient validation of input argument for an IPv4 or IPv6 command-line parameter. - If a system is set up to use a trustedkey and if one is not using the feature allowing an optional 4th field in the ntp.keys file to specify which IPs can serve time.

Affected Software

Affected Software

All ntp-4 releases up to, but not including 4.2.8p12, and 4.3.0 up to, but not including 4.3.94.

Detection Method

Detection Method

Checks if a vulnerable version is present on the target host.

Solution

Solution

Upgrade to 4.2.8p12 or 4.3.94 or later. Please see the references for more information.

Common Vulnerabilities and Exposures (CVE)