Gentoo: GLSA-201406-27: polkit, Spice-Gtk, systemd, HPLIP, libvirt: Privilege escalation
Summary
polkit has a race condition which potentially allows a process to change its UID/EUID via suid or pkexec before authentication is completed.
Resolution
All polkit users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-auth/polkit-0.112"
All HPLIP users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-print/hplip-3.14.1"
All Spice-Gtk users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/spice-gtk-0.21"
All systemd users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-apps/systemd-204-r1"
All libvirt users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-emulation/libvirt-1.1.2-r3"
References
[ 1 ] CVE-2013-4288 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4288 [ 2 ] CVE-2013-4311 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4311 [ 3 ] CVE-2013-4324 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4324 [ 4 ] CVE-2013-4325 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4325 [ 5 ] CVE-2013-4327 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4327
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201406-27
Concerns
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
Synopsis
A race condition in polkit could allow a local attacker to gain escalated privileges.
Background
polkit is a toolkit for managing policies relating to unprivileged processes communicating with privileged processes.
Affected Packages
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-print/hplip < 3.14.1 >= 3.14.1 2 net-misc/spice-gtk < 0.21 >= 0.21 3 sys-apps/systemd < 204-r1 >= 204-r1 4 app-emulation/libvirt < 1.1.2-r3 >= 1.1.2-r3 5 sys-auth/polkit < 0.112 >= 0.112 ------------------------------------------------------------------- 5 affected packages
Impact
===== A local attacker could start a suid or pkexec process through a polkit-enabled application, which could result in privilege escalation or bypass of polkit restrictions.
Workaround
There is no known workaround at this time.