This is an automatically created tracking bug! It was created to ensure that one or more security vulnerabilities are fixed in affected Fedora versions. For comments that are specific to the vulnerability please use bugs filed against "Security Response" product referenced in the "Blocks" field. For more information see: http://fedoraproject.org/wiki/Security/TrackingBugs When creating a Bodhi update request, please include this bug ID and the bug IDs of this bug's parent bugs filed against the "Security Response" product (the top-level CVE bugs). Please mention the CVE IDs being fixed in the RPM changelog when available. Bodhi update submission link: https://admin.fedoraproject.org/updates/new/?type_=security&bugs=782642 Please note: this issue affects multiple supported versions of Fedora. Only one tracking bug has been filed; please ensure that it is only closed when all affected versions are fixed. Reproducers, if any, will remain confidential and never be made public, unless done so by the security team. [bug automatically created by: add-tracking-bugs]
This is fixed by upstream commit e268337dfe26dfc7efd422a804dbb27977a3cccc. I'll backport that to all 3 branches later today. Note: Fedora defaults to /proc/sys/kernel/randomize_va_space = 2, which makes this more difficult to exploit.
Committed to all branches.
kernel-3.2.1-3.fc16 has been submitted as an update for Fedora 16. https://admin.fedoraproject.org/updates/kernel-3.2.1-3.fc16
kernel-2.6.41.10-3.fc15 has been submitted as an update for Fedora 15. https://admin.fedoraproject.org/updates/kernel-2.6.41.10-3.fc15
Petr reported that the publicly available exploit works on Fedora using gpasswd. https://bugzilla.redhat.com/show_bug.cgi?id=782642#c26
Package kernel-2.6.41.10-3.fc15: * should fix your issue, * was pushed to the Fedora 15 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing kernel-2.6.41.10-3.fc15' as soon as you are able to, then reboot. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-0861/kernel-2.6.41.10-3.fc15 then log in and leave karma (feedback).
kernel-3.2.1-3.fc16 has been pushed to the Fedora 16 stable repository. If problems still persist, please make note of it in this bug report.
(In reply to comment #5) > Petr reported that the publicly available exploit works on Fedora using > gpasswd. > https://bugzilla.redhat.com/show_bug.cgi?id=782642#c26 Indeed. That same exploit does not result in a root shell with the updates mentioned in comment #3 and comment #4
kernel-2.6.41.10-3.fc15 has been pushed to the Fedora 15 stable repository. If problems still persist, please make note of it in this bug report.