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NTP < 4.2.7p367 DoS Vulnerability

Information

Severity

Severity

Medium

Family

Family

Denial of Service

CVSSv2 Base

CVSSv2 Base

5.0

CVSSv2 Vector

CVSSv2 Vector

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

Solution Type

Solution Type

Vendor Patch

Created

Created

1 year ago

Modified

Modified

1 year ago

Summary

NTP is prone to a denial of service (DoS) vulnerability.

Insight

Insight

The ULOGTOD function in ntp.d in SNTP does not properly perform type conversions from a precision value to a double, which allows remote attackers to cause a denial of service (infinite loop) via a crafted NTP packet.

Affected Software

Affected Software

NTPd version 4.2.7p366 and prior.

Detection Method

Detection Method

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

Solution

Solution

Update to version 4.2.7p367 or later.

Common Vulnerabilities and Exposures (CVE)