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CVE-2011-2200

Status Candidate

Overview

The _dbus_header_byteswap function in dbus-marshal-header.c in D-Bus (aka DBus) 1.2.x before 1.2.28, 1.4.x before 1.4.12, and 1.5.x before 1.5.4 does not properly handle a non-native byte order, which allows local users to cause a denial of service (connection loss), obtain potentially sensitive information, or conduct unspecified state-modification attacks via crafted messages.

Related Files

Gentoo Linux Security Advisory 201110-14
Posted Oct 21, 2011
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201110-14 - Multiple vulnerabilities were found in D-Bus, the worst of which allowing for a symlink attack. Versions less than 1.4.12 are affected.

tags | advisory, vulnerability
systems | linux, gentoo
advisories | CVE-2010-4352, CVE-2011-2200, CVE-2011-2533
SHA-256 | 55b8075783df5c6f9b4afa7745043043619b3aca7b24e38ad62b9bcd97d97883
Red Hat Security Advisory 2011-1132-01
Posted Aug 10, 2011
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2011-1132-01 - D-Bus is a system for sending messages between applications. It is used for the system-wide message bus service and as a per-user-login-session messaging facility. A denial of service flaw was found in the way the D-Bus library handled endianness conversion when receiving messages. A local user could use this flaw to send a specially-crafted message to dbus-daemon or to a service using the bus, such as Avahi or NetworkManager, possibly causing the daemon to exit or the service to disconnect from the bus. All users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. For the update to take effect, all running instances of dbus-daemon and all running applications using the libdbus library must be restarted, or the system rebooted.

tags | advisory, denial of service, local
systems | linux, redhat
advisories | CVE-2011-2200
SHA-256 | 0cda545a6543cdc232ce13767f8c34f2e0690d0712d467c6878d4ae0d25a3356
Ubuntu Security Notice USN-1176-1
Posted Jul 27, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1176-1 - It was discovered that DBus did not properly validate the byte order of messages under certain circumstances. An attacker could exploit this to cause a denial of service via application crash or potentially obtain access to sensitive information.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2011-2200
SHA-256 | 3b6052975be237351112380d22eec18bfe7647b5f4cddf8a4a5f2361385ec20f
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