Mageia alert MGASA-2017-0024 (shadow-utils)

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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-2017-0024: Updated shadow-utils packages fix security vulnerabilities 
Date:
    	     
 
Fri, 27 Jan 2017 21:31:22 +0100
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<20170127203122.2B8279F7E7@duvel.mageia.org>
MGASA-2017-0024 - Updated shadow-utils packages fix security vulnerabilities

Publication date: 27 Jan 2017
URL: http://advisories.mageia.org/MGASA-2017-0024.html
Type: security
Affected Mageia releases: 5
CVE: CVE-2016-6251,
     CVE-2016-6252

Description:
It was found that shadow-utils-4.2.1 had a potentially unsafe use of
getlogin with the concern that the utmp entry might have a spoofed
username associated with a correct uid (CVE-2016-6251).

It was found that shadow-utils-4.2.1 had an incorrect integer handling
problem where it looks like the int wrap is exploitable as a LPE, as the
kernel is using 32bit uid's that are truncated from unsigned longs
(64bit on x64) as returned by simple_strtoul() [map_write()].
(CVE-2016-6252).

References:
- https://bugs.mageia.org/show_bug.cgi?id=18984
- http://openwall.com/lists/oss-security/2016/07/20/2
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6251
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6252

SRPMS:
- 5/core/shadow-utils-4.2.1-6.mga5