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Sicherheit: Mangelnde Rechteprüfung in polkit
Aktuelle Meldungen Distributionen
Name: Mangelnde Rechteprüfung in polkit
ID: FEDORA-2013-17160
Distribution: Fedora
Plattformen: Fedora 20
Datum: Mo, 23. September 2013, 08:06
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4288
Applikationen: policykit

Originalnachricht

Name        : polkit
Product : Fedora 20
Version : 0.112
Release : 1.fc20
URL : http://www.freedesktop.org/wiki/Software/polkit
Summary : An authorization framework
Description :
polkit is a toolkit for defining and handling authorizations. It is
used for allowing unprivileged processes to speak to privileged
processes.

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Update Information:

This release fixes CVE-2013-4288: Race condition with process subjects that do
not have securely determined uid.

pkcheck(1) now supports a new format for the --process argument; all
applications need to use the new format to avoid a race condition (or use --system-bus-name to identify the process instead).

Similarly, applications using the API should always use
polkit_unix_process_new_for_owner(). polkit_unix_process_new() and polkit_unix_process_new_full() are unsafe and have been deprecated.

Thanks to Sebastian Krahmer of the SUSE Security Team for reporting this
issue.

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References:

[ 1 ] Bug #1002375 - CVE-2013-4288 polkit: unix-process subject for
authorization is racy
https://bugzilla.redhat.com/show_bug.cgi?id=1002375
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This update can be installed with the "yum" update program. Use
su -c 'yum update polkit' at the command line.
For more information, refer to "Managing Software with yum",
available at http://docs.fedoraproject.org/yum/.

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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