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Bug 1274261 - (CVE-2015-7852) CVE-2015-7852 ntp: ntpq atoascii memory corruption vulnerability
CVE-2015-7852 ntp: ntpq atoascii memory corruption vulnerability
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20151021,repor...
: Security
Depends On: 1274351 1296207 1317795
Blocks: 1260670 1323912
  Show dependency tree / graph
 
Reported: 2015-10-22 07:31 EDT by Martin Prpič
Modified: 2016-11-06 00:14 EDT (History)
10 users (show)

See Also:
Fixed In Version: ntp 4.2.8p4
Doc Type: Bug Fix
Doc Text:
An off-by-one flaw, leading to a buffer overflow, was found in cookedprint functionality of ntpq. A specially crafted NTP packet could potentially cause ntpq to crash.
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Clone Of:
Environment:
Last Closed: 2016-11-06 00:14:09 EDT
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CRM:
Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Knowledge Base (Solution) 2024443 None None None Never
Red Hat Product Errata RHSA-2016:0780 normal SHIPPED_LIVE Moderate: ntp security and bug fix update 2016-05-10 18:35:43 EDT
Red Hat Product Errata RHSA-2016:2583 normal SHIPPED_LIVE Moderate: ntp security and bug fix update 2016-11-03 08:08:36 EDT

  None (edit)
Description Martin Prpič 2015-10-22 07:31:18 EDT 
The following flaw was found in ntpd:

A potential off by one vulnerability exists in the cookedprint functionality of ntpq. A specially crafted buffer could cause a buffer overflow potentially resulting in null byte being written out of bounds.

External References:

http://talosintel.com/reports/TALOS-2015-0063/
http://support.ntp.org/bin/view/Main/NtpBug2919
Comment 1 Martin Prpič 2015-10-22 10:34:13 EDT 
Created ntp tracking bugs for this issue:

Affects: fedora-all [bug 1274351]
Comment 3 Fedora Update System 2015-11-02 13:52:59 EST 
ntp-4.2.6p5-34.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
Comment 4 Fedora Update System 2015-11-04 17:49:34 EST 
ntp-4.2.6p5-34.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report.
Comment 11 Fedora Update System 2016-02-20 21:25:18 EST 
ntp-4.2.6p5-36.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.
Comment 13 errata-xmlrpc 2016-05-10 16:17:40 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2016:0780 https://rhn.redhat.com/errata/RHSA-2016-0780.html
Comment 14 errata-xmlrpc 2016-11-03 15:33:08 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:2583 https://rhn.redhat.com/errata/RHSA-2016-2583.html
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