Test Kennung:	1.3.6.1.4.1.25623.1.0.70468
Kategorie:	Red Hat Local Security Checks
Titel:	RedHat Security Advisory RHSA-2011:1465
Zusammenfassung:	NOSUMMARY
Beschreibung:	Description: The remote host is missing updates announced in advisory RHSA-2011:1465. The kernel packages contain the Linux kernel, the core of any Linux operating system. This update fixes the following security issues: * IPv6 fragment identification value generation could allow a remote attacker to disrupt a target system's networking, preventing legitimate users from accessing its services. (CVE-2011-2699, Important) * A signedness issue was found in the Linux kernel's CIFS (Common Internet File System) implementation. A malicious CIFS server could send a specially-crafted response to a directory read request that would result in a denial of service or privilege escalation on a system that has a CIFS share mounted. (CVE-2011-3191, Important) * A flaw was found in the way the Linux kernel handled fragmented IPv6 UDP datagrams over the bridge with UDP Fragmentation Offload (UFO) functionality on. A remote attacker could use this flaw to cause a denial of service. (CVE-2011-4326, Important) * The way IPv4 and IPv6 protocol sequence numbers and fragment IDs were generated could allow a man-in-the-middle attacker to inject packets and possibly hijack connections. Protocol sequence numbers and fragment IDs are now more random. (CVE-2011-3188, Moderate) * A buffer overflow flaw was found in the Linux kernel's FUSE (Filesystem in Userspace) implementation. A local user in the fuse group who has access to mount a FUSE file system could use this flaw to cause a denial of service. (CVE-2011-3353, Moderate) * A flaw was found in the b43 driver in the Linux kernel. If a system had an active wireless interface that uses the b43 driver, an attacker able to send a specially-crafted frame to that interface could cause a denial of service. (CVE-2011-3359, Moderate) * A flaw was found in the way CIFS shares with DFS referrals at their root were handled. An attacker on the local network who is able to deploy a malicious CIFS server could create a CIFS network share that, when mounted, would cause the client system to crash. (CVE-2011-3363, Moderate) * A flaw was found in the way the Linux kernel handled VLAN 0 frames with the priority tag set. When using certain network drivers, an attacker on the local network could use this flaw to cause a denial of service. (CVE-2011-3593, Moderate) * A flaw in the way memory containing security-related data was handled in tpm_read() could allow a local, unprivileged user to read the results of a previously run TPM command. (CVE-2011-1162, Low) * A heap overflow flaw was found in the Linux kernel's EFI GUID Partition Table (GPT) implementation. A local attacker could use this flaw to cause a denial of service by mounting a disk that contains specially-crafted partition tables. (CVE-2011-1577, Low) * The I/O statistics from the taskstats subsystem could be read without any restrictions. A local, unprivileged user could use this flaw to gather confidential information, such as the length of a password used in a process. (CVE-2011-2494, Low) * It was found that the perf tool, a part of the Linux kernel's Performance Events implementation, could load its configuration file from the current working directory. If a local user with access to the perf tool were tricked into running perf in a directory that contains a specially-crafted configuration file, it could cause perf to overwrite arbitrary files and directories accessible to that user. (CVE-2011-2905, Low) Red Hat would like to thank Fernando Gont for reporting CVE-2011-2699 Darren Lavender for reporting CVE-2011-3191 Dan Kaminsky for reporting CVE-2011-3188 Yogesh Sharma for reporting CVE-2011-3363 Gideon Naim for reporting CVE-2011-3593 Peter Huewe for reporting CVE-2011-1162 Timo Warns for reporting CVE-2011-1577 and Vasiliy Kulikov of Openwall for reporting CVE-2011-2494. This update also fixes various bugs. Documentation for these changes will be available shortly from the Technical Notes document linked to in the References section. Solution: Please note that this update is available via Red Hat Network. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date http://rhn.redhat.com/errata/RHSA-2011-1465.html Risk factor : High
Querverweis:	Common Vulnerability Exposure (CVE) ID: CVE-2011-1162 BugTraq ID: 50764 http://www.securityfocus.com/bid/50764 Common Vulnerability Exposure (CVE) ID: CVE-2011-1577 BugTraq ID: 47343 http://www.securityfocus.com/bid/47343 Bugtraq: 20110413 [PRE-SA-2011-03] Denial-of-service vulnerability in EFI partition handling code of the Linux kernel (Google Search) http://www.securityfocus.com/archive/1/517477/100/0/threaded http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061236.html http://www.spinics.net/lists/mm-commits/msg83274.html http://openwall.com/lists/oss-security/2011/04/12/17 http://openwall.com/lists/oss-security/2011/04/13/1 RedHat Security Advisories: RHSA-2011:0833 http://rhn.redhat.com/errata/RHSA-2011-0833.html http://securitytracker.com/id?1025355 http://securityreason.com/securityalert/8238 XForce ISS Database: kernel-guid-dos(66773) https://exchange.xforce.ibmcloud.com/vulnerabilities/66773 Common Vulnerability Exposure (CVE) ID: CVE-2011-2494 http://www.openwall.com/lists/oss-security/2011/06/27/1 http://secunia.com/advisories/48898 SuSE Security Announcement: SUSE-SU-2012:0554 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html Common Vulnerability Exposure (CVE) ID: CVE-2011-2699 http://www.mandriva.com/security/advisories?name=MDVSA-2013:150 http://www.openwall.com/lists/oss-security/2011/07/20/5 http://www.securitytracker.com/id?1027274 Common Vulnerability Exposure (CVE) ID: CVE-2011-2905 http://www.openwall.com/lists/oss-security/2011/08/09/6 Common Vulnerability Exposure (CVE) ID: CVE-2011-3188 HPdes Security Advisory: HPSBGN02970 http://marc.info/?l=bugtraq&m=139447903326211&w=2 http://www.openwall.com/lists/oss-security/2011/08/23/2 Common Vulnerability Exposure (CVE) ID: CVE-2011-3191 http://www.openwall.com/lists/oss-security/2011/08/24/2 Common Vulnerability Exposure (CVE) ID: CVE-2011-3353 http://www.openwall.com/lists/oss-security/2011/09/09/6 Common Vulnerability Exposure (CVE) ID: CVE-2011-3359 http://www.openwall.com/lists/oss-security/2011/09/14/2 Common Vulnerability Exposure (CVE) ID: CVE-2011-3363 http://www.openwall.com/lists/oss-security/2011/09/14/12 Common Vulnerability Exposure (CVE) ID: CVE-2011-3593 http://www.openwall.com/lists/oss-security/2012/03/05/3 Common Vulnerability Exposure (CVE) ID: CVE-2011-4326 BugTraq ID: 50751 http://www.securityfocus.com/bid/50751 http://www.openwall.com/lists/oss-security/2011/11/21/10
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