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Bug 1397334 - (CVE-2016-7434) CVE-2016-7434 ntp: read_mru_list() does inadequate incoming packet checks
CVE-2016-7434 ntp: read_mru_list() does inadequate incoming packet checks
Status: CLOSED NOTABUG
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20161121,reported=2...
: Security
Depends On:
Blocks: 1397349
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Reported: 2016-11-22 05:41 EST by Adam Mariš
Modified: 2018-05-24 03:18 EDT (History)
5 users (show)

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Fixed In Version: ntp-4.2.8p9
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Last Closed: 2016-11-24 09:20:00 EST
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Description Adam Mariš 2016-11-22 05:41:52 EST 
If ntpd is configured to allow mrulist query requests from a server that sends a crafted malicious packet, ntpd will crash on receipt of that crafted malicious mrulist query packet.

External References:

http://support.ntp.org/bin/view/Main/NtpBug3102
Comment 1 Adam Mariš 2016-11-22 06:08:59 EST 
Created ntp tracking bugs for this issue:

Affects: fedora-all [bug 1397351]
Comment 3 Adam Mariš 2016-11-24 09:20:00 EST 
Statement:

This issue did not affect the versions of ntp as shipped with Red Hat Enterprise Linux 5, 6 and 7 as they did not include support for mrulist.
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