Test Kennung:	1.3.6.1.4.1.25623.1.1.10.2014.0457
Kategorie:	Mageia Linux Local Security Checks
Titel:	Mageia: Security Advisory (MGASA-2014-0457)
Zusammenfassung:	The remote host is missing an update for the 'dbus' package(s) announced via the MGASA-2014-0457 advisory.
Beschreibung:	Summary: The remote host is missing an update for the 'dbus' package(s) announced via the MGASA-2014-0457 advisory. Vulnerability Insight: The patch issued by the D-Bus maintainers for CVE-2014-3636 was based on incorrect reasoning, and does not fully prevent the attack described as 'CVE-2014-3636 part A', which is repeated below. Preventing that attack requires raising the system dbus-daemon's RLIMIT_NOFILE (ulimit -n) to a higher value. By queuing up the maximum allowed number of fds, a malicious sender could reach the system dbus-daemon's RLIMIT_NOFILE (ulimit -n, typically 1024 on Linux). This would act as a denial of service in two ways: * new clients would be unable to connect to the dbus-daemon * when receiving a subsequent message from a non-malicious client that contained a fd, dbus-daemon would receive the MSG_CTRUNC flag, indicating that the list of fds was truncated, kernel fd-passing APIs do not provide any way to recover from that, so dbus-daemon responds to MSG_CTRUNC by disconnecting the sender, causing denial of service to that sender. This update resolves the issue (CVE-2014-7824). Also default auth_timeout that was changed from 30s to 5s in MGASA-2014-0395, and raised to 20s in MGAA-2014-0182 is now changed back to 30s as there still are reports about failing dbus connections. Affected Software/OS: 'dbus' package(s) on Mageia 3, Mageia 4. Solution: Please install the updated package(s). CVSS Score: 2.1 CVSS Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P
Querverweis:	Common Vulnerability Exposure (CVE) ID: CVE-2014-7824 BugTraq ID: 71012 http://www.securityfocus.com/bid/71012 Debian Security Information: DSA-3099 (Google Search) http://www.debian.org/security/2014/dsa-3099 http://www.mandriva.com/security/advisories?name=MDVSA-2015:176 http://www.openwall.com/lists/oss-security/2014/11/10/2 http://secunia.com/advisories/62603 http://www.ubuntu.com/usn/USN-2425-1 XForce ISS Database: dbus-cve20147824-dos(98576) https://exchange.xforce.ibmcloud.com/vulnerabilities/98576
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