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Bug 1410014 - (CVE-2016-9312) CVE-2016-9312 ntp: DoS by oversized UDP packet
CVE-2016-9312 ntp: DoS by oversized UDP packet
Status: CLOSED NOTABUG
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
high Severity high
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Assigned To: Red Hat Product Security
impact=important,public=20161121,repo...
: Security
Depends On:
Blocks: 1397349
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Reported: 2017-01-04 03:33 EST by Martin Prpič
Modified: 2017-01-04 05:32 EST (History)
3 users (show)

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Fixed In Version: ntp 4.2.8p9
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Last Closed: 2017-01-04 03:35:21 EST
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Description Martin Prpič 2017-01-04 03:33:04 EST 
A flaw in NTP was reported:

If a vulnerable instance of ntpd on Windows receives a crafted malicious packet that is "too big", ntpd will stop working. 

Note: this flaw only affects instances of ntpd running on the Windows OS.
Comment 1 Martin Prpič 2017-01-04 03:33:19 EST 
External References:

http://support.ntp.org/bin/view/Main/NtpBug3110
Comment 2 Martin Prpič 2017-01-04 03:35:30 EST 
Statement:

This issue did not affect the versions of ntp as shipped with Red Hat Enterprise Linux 5, 6, and 7. This issue only affected ntpd running on the Windows OS.
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