Bug 1397334 (CVE-2016-7434) - CVE-2016-7434 ntp: read_mru_list() does inadequate incoming packet checks
Summary: CVE-2016-7434 ntp: read_mru_list() does inadequate incoming packet checks
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2016-7434
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 1397349
TreeView+ depends on / blocked
 
Reported: 2016-11-22 10:41 UTC by Adam Mariš
Modified: 2021-09-09 12:00 UTC (History)
5 users (show)

Fixed In Version: ntp-4.2.8p9
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Environment:
Last Closed: 2016-11-24 14:20:00 UTC
Embargoed:

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Description Adam Mariš 2016-11-22 10:41:52 UTC 
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 11:08:59 UTC 
Created ntp tracking bugs for this issue:

Affects: fedora-all [bug 1397351]
Comment 3 Adam Mariš 2016-11-24 14:20:00 UTC 
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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