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CVE-2013-4327

Status Candidate

Overview

systemd does not properly use D-Bus for communication with a polkit authority, which allows local users to bypass intended access restrictions by leveraging a PolkitUnixProcess PolkitSubject race condition via a (1) setuid process or (2) pkexec process, a related issue to CVE-2013-4288.

Related Files

Gentoo Linux Security Advisory 201406-27
Posted Jun 27, 2014
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201406-27 - A race condition in polkit could allow a local attacker to gain escalated privileges. Versions less than 3.14.1 are affected.

tags | advisory, local
systems | linux, gentoo
advisories | CVE-2013-4288, CVE-2013-4311, CVE-2013-4324, CVE-2013-4325, CVE-2013-4327
SHA-256 | e25d75df9ade95871973ee8eb13ecdc5976b44c82d22212c6566220987e42d0e
Debian Security Advisory 2777-1
Posted Oct 11, 2013
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2777-1 - Multiple security issues in systemd have been discovered by Sebastian to the bypass of Policykit restrictions and privilege escalation or denial of service through an integer overflow in journald and missing input sanitising in the processing of X keyboard extension (XKB) files.

tags | advisory, denial of service, overflow
systems | linux, debian
advisories | CVE-2013-4327, CVE-2013-4391, CVE-2013-4394
SHA-256 | 317013ec0e6ce864ca057e95e8db59dc95c1c32f8d7632418eb29c25cb50f773
Mandriva Linux Security Advisory 2013-243
Posted Sep 27, 2013
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2013-243 - A race condition was found in the way the PolicyKit pkcheck utility checked process authorization when the process was specified by its process ID via the --process option. A local user could use this flaw to bypass intended PolicyKit authorizations and escalate their privileges.

tags | advisory, local
systems | linux, mandriva
advisories | CVE-2013-4288, CVE-2013-4325, CVE-2013-4326, CVE-2013-4327
SHA-256 | 91ca06b6329364c75747c0f85a55c45bc6033f08b2e6bb7fa73577a3bf412762
Ubuntu Security Notice USN-1961-1
Posted Sep 18, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1961-1 - It was discovered that systemd was using polkit in an unsafe manner. A local attacker could possibly use this issue to bypass intended polkit authorizations.

tags | advisory, local
systems | linux, ubuntu
advisories | CVE-2013-4327
SHA-256 | 8d3f12f496aefbcf0ee96e07388171506a6f132ca36d598b2ad413d8cf4b4c4e
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