Fedora 29: polkit Security Update 2019-e957cecffd 2019-e957cecffd

January 13, 2019

Due to kernel issue there is a way to reuse start_time of a process

Summary

polkit is a toolkit for defining and handling authorizations. It is

used for allowing unprivileged processes to speak to privileged

processes.

Due to kernel issue there is a way to reuse start_time of a process. This allows

to duplicate process authorized by polkit. This update mitigates polkit issue

#75 (slowfork): https://gitlab.freedesktop.org/polkit/polkit/-/issues/75

* Mon Jan 7 2019 Jan Rybar - 0.115-5

- Fix of start_time reuse exploit (slowfork)

* Fri Dec 7 2018 Jan Rybar - 0.115-4.1

- Fix of CVE-2018-19788, priv escalation with high UIDs

- Resolves: rhbz#1655926

* Thu Sep 27 2018 Owen Taylor - 0.115-4

- Fix installation with prefix != /usr

* Fri Jul 20 2018 Jan Rybar - 0.115-3

- Warning raised by polkit when disconnected from ssh

- polkitagentlistener: resource leak - pointer to 'server'

- Error message raised on every 'systemctl start' in emergency.target

su -c 'dnf upgrade --advisory FEDORA-2019-e957cecffd' at the command

line. For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

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/security/

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FEDORA-2019-e957cecffd 2019-01-13 02:30:40.466723 Product : Fedora 29 Version : 0.115 Release : 4.2.fc29 URL : https://gitlab.freedesktop.org/polkit/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. Due to kernel issue there is a way to reuse start_time of a process. This allows to duplicate process authorized by polkit. This update mitigates polkit issue #75 (slowfork): https://gitlab.freedesktop.org/polkit/polkit/-/issues/75 * Mon Jan 7 2019 Jan Rybar - 0.115-5 - Fix of start_time reuse exploit (slowfork) * Fri Dec 7 2018 Jan Rybar - 0.115-4.1 - Fix of CVE-2018-19788, priv escalation with high UIDs - Resolves: rhbz#1655926 * Thu Sep 27 2018 Owen Taylor - 0.115-4 - Fix installation with prefix != /usr * Fri Jul 20 2018 Jan Rybar - 0.115-3 - Warning raised by polkit when disconnected from ssh - polkitagentlistener: resource leak - pointer to 'server' - Error message raised on every 'systemctl start' in emergency.target su -c 'dnf upgrade --advisory FEDORA-2019-e957cecffd' at the command line. For more information, refer to the dnf documentation available at https://dnf.readthedocs.io/en/latest/command_ref.html 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/security/ package-announce mailing list -- package-announce@lists.fedoraproject.org To unsubscribe send an email to package-announce-leave@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/