ID de Prueba:	1.3.6.1.4.1.25623.1.0.702971
Categoría:	Debian Local Security Checks
Título:	Debian Security Advisory DSA 2971-1 (dbus - security update)
Resumen:	Several vulnerabilities have been discovered in dbus, an asynchronous;inter-process communication system. The Common Vulnerabilities and;Exposures project identifies the following problems:;;CVE-2014-3477;Alban Crequy at Collabora Ltd. discovered that dbus-daemon sends an;AccessDenied error to the service instead of a client when the;client is prohibited from accessing the service. A local attacker;could use this flaw to cause a bus-activated service that is not;currently running to attempt to start, and fail, denying other users;access to this service.;;CVE-2014-3532;Alban Crequy at Collabora Ltd. discovered a bug in dbus-daemon's;support for file descriptor passing. A malicious process could force;system services or user applications to be disconnected from the;D-Bus system by sending them a message containing a file descriptor,;leading to a denial of service.;;CVE-2014-3533;Alban Crequy at Collabora Ltd. and Alejandro Martínez Suárez;discovered that a malicious process could force services to be;disconnected from the D-Bus system by causing dbus-daemon to attempt;to forward invalid file descriptors to a victim process, leading to;a denial of service.
Descripción:	Summary: Several vulnerabilities have been discovered in dbus, an asynchronous inter-process communication system. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2014-3477 Alban Crequy at Collabora Ltd. discovered that dbus-daemon sends an AccessDenied error to the service instead of a client when the client is prohibited from accessing the service. A local attacker could use this flaw to cause a bus-activated service that is not currently running to attempt to start, and fail, denying other users access to this service. CVE-2014-3532 Alban Crequy at Collabora Ltd. discovered a bug in dbus-daemon's support for file descriptor passing. A malicious process could force system services or user applications to be disconnected from the D-Bus system by sending them a message containing a file descriptor, leading to a denial of service. CVE-2014-3533 Alban Crequy at Collabora Ltd. and Alejandro Martínez Suárez discovered that a malicious process could force services to be disconnected from the D-Bus system by causing dbus-daemon to attempt to forward invalid file descriptors to a victim process, leading to a denial of service. Affected Software/OS: dbus on Debian Linux Solution: For the stable distribution (wheezy), these problems have been fixed in version 1.6.8-1+deb7u3. For the unstable distribution (sid), these problems have been fixed in version 1.8.6-1. We recommend that you upgrade your dbus packages. CVSS Score: 2.1 CVSS Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2014-3477 BugTraq ID: 67986 http://www.securityfocus.com/bid/67986 Debian Security Information: DSA-2971 (Google Search) http://www.debian.org/security/2014/dsa-2971 http://www.mandriva.com/security/advisories?name=MDVSA-2015:176 http://seclists.org/oss-sec/2014/q2/509 http://secunia.com/advisories/59428 http://secunia.com/advisories/59611 http://secunia.com/advisories/59798 SuSE Security Announcement: openSUSE-SU-2014:0821 (Google Search) http://lists.opensuse.org/opensuse-updates/2014-06/msg00042.html SuSE Security Announcement: openSUSE-SU-2014:0874 (Google Search) http://lists.opensuse.org/opensuse-updates/2014-07/msg00012.html SuSE Security Announcement: openSUSE-SU-2014:1239 (Google Search) http://lists.opensuse.org/opensuse-updates/2014-09/msg00049.html Common Vulnerability Exposure (CVE) ID: CVE-2014-3532 http://openwall.com/lists/oss-security/2014/07/02/4 http://secunia.com/advisories/60236 Common Vulnerability Exposure (CVE) ID: CVE-2014-3533
Copyright	Copyright (c) 2014 Greenbone Networks GmbH http://greenbone.net

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