Bug 1274262 (CVE-2015-7853) - CVE-2015-7853 ntp: reference clock memory corruption vulnerability
Summary: CVE-2015-7853 ntp: reference clock memory corruption vulnerability
Alias: CVE-2015-7853
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Whiteboard: impact=moderate,public=20151021,repor...
Keywords: Security
Depends On: 1296163
Blocks: 1260670
TreeView+ depends on / blocked
Reported: 2015-10-22 11:31 UTC by Martin Prpič
Modified: 2019-06-08 20:48 UTC (History)
7 users (show)

Clone Of:
Last Closed: 2016-01-07 13:19:05 UTC

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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Knowledge Base (Solution) 2024443 None None None Never

Description Martin Prpič 2015-10-22 11:31:44 UTC
The following flaw was found in ntpd:

A potential buffer overflow vulnerability exists in the refclock of ntpd. An invalid length provided by a hardware reference clock could cause a buffer overflow potentially resulting in memory being modified. A malicious reflock could provide a negative length to trigger this vulnerability.

External References:


Comment 3 Martin Prpič 2016-01-06 13:55:04 UTC
Created ntp tracking bugs for this issue:

Affects: fedora-all [bug 1296163]

Comment 5 Martin Prpič 2016-01-07 13:19:05 UTC

This issue did not affect the versions of ntp as shipped with Red Hat Enterprise Linux 5, 6, and 7 as they do not include the custom refclock driver.

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