Mageia alert MGASA-2015-0418 (ntp)

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Mageia Updates <buildsystem-daemon@mageia.org> 
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updates-announce@ml.mageia.org 
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[updates-announce] MGASA-2015-0418: Updated ntp package fixes security vulnerabilities 
Date:
    	     
 
Fri, 30 Oct 2015 21:11:42 +0100
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<20151030201142.51CD540C02@valstar.mageia.org>
MGASA-2015-0418 - Updated ntp package fixes security vulnerabilities

Publication date: 30 Oct 2015
URL: http://advisories.mageia.org/MGASA-2015-0418.html
Type: security
Affected Mageia releases: 5
CVE: CVE-2015-7850,
     CVE-2015-7853,
     CVE-2015-7855

Description:
Yves Younan discovered that NTP incorrectly handled logfile and
keyfile directives. In a non-default configuration, a remote
authenticated attacker could possibly use this issue to cause NTP to
enter a loop, resulting in a denial of service (CVE-2015-7850).

Yves Younan discovered that NTP incorrectly handled reference clock
memory. A malicious refclock could possibly use this issue to cause NTP
to crash, resulting in a denial of service, or possibly execute
arbitrary code (CVE-2015-7853).

John D "Doug" Birdwell discovered that NTP incorrectly handled decoding
certain bogus values. An attacker could possibly use this issue to
cause NTP to crash, resulting in a denial of service (CVE-2015-7855).

References:
- https://bugs.mageia.org/show_bug.cgi?id=17041
- http://support.ntp.org/bin/view/Main/SecurityNotice#Octob...
- http://www.ubuntu.com/usn/usn-2783-1/
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7850
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7853
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7855

SRPMS:
- 5/core/ntp-4.2.6p5-24.3.mga5