Test Kennung:	1.3.6.1.4.1.25623.1.0.70450
Kategorie:	Red Hat Local Security Checks
Titel:	RedHat Security Advisory RHSA-2011:1386
Zusammenfassung:	NOSUMMARY
Beschreibung:	Description: The remote host is missing updates announced in advisory RHSA-2011:1386. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security fixes: * The maximum file offset handling for ext4 file systems could allow a local, unprivileged user to cause a denial of service. (CVE-2011-2695, Important) * 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 malicious CIFS (Common Internet File System) 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 local attacker could use mount.ecryptfs_private to mount (and then access) a directory they would otherwise not have access to. Note: To correct this issue, the RHSA-2011:1241 ecryptfs-utils update must also be installed. (CVE-2011-1833, Moderate) * A flaw in the taskstats subsystem could allow a local, unprivileged user to cause excessive CPU time and memory use. (CVE-2011-2484, Moderate) * Mapping expansion handling could allow a local, unprivileged user to cause a denial of service. (CVE-2011-2496, Moderate) * GRO (Generic Receive Offload) fields could be left in an inconsistent state. An attacker on the local network could use this flaw to cause a denial of service. GRO is enabled by default in all network drivers that support it. (CVE-2011-2723, Moderate) * RHSA-2011:1065 introduced a regression in the Ethernet bridge implementation. If a system had an interface in a bridge, and an attacker on the local network could send packets to that interface, they could cause a denial of service on that system. Xen hypervisor and KVM (Kernel-based Virtual Machine) hosts often deploy bridge interfaces. (CVE-2011-2942, Moderate) * A flaw in the Xen hypervisor IOMMU error handling implementation could allow a privileged guest user, within a guest operating system that has direct control of a PCI device, to cause performance degradation on the host and possibly cause it to hang. (CVE-2011-3131, Moderate) * IPv4 and IPv6 protocol sequence number and fragment ID generation could allow a man-in-the-middle attacker to inject packets and possibly hijack connections. Protocol sequence number and fragment IDs are now more random. (CVE-2011-3188, Moderate) * A flaw in the kernel's clock implementation could allow a local, unprivileged user to cause a denial of service. (CVE-2011-3209, Moderate) * Non-member VLAN (virtual LAN) packet handling for interfaces in promiscuous mode and also using the be2net driver could allow an attacker on the local network to cause a denial of service. (CVE-2011-3347, Moderate) * A flaw in the auerswald USB driver could allow a local, unprivileged user to cause a denial of service or escalate their privileges by inserting a specially-crafted USB device. (CVE-2009-4067, Low) * A flaw in the Trusted Platform Module (TPM) implementation could allow a local, unprivileged user to leak information to user space. (CVE-2011-1160, Low) * A local, unprivileged user could possibly mount a CIFS share that requires authentication without knowing the correct password if the mount was already mounted by another local user. (CVE-2011-1585, Low) Red Hat would like to thank Fernando Gont for reporting CVE-2011-2699 Darren Lavender for reporting CVE-2011-3191 the Ubuntu Security Team for reporting CVE-2011-1833 Vasiliy Kulikov of Openwall for reporting CVE-2011-2484 Robert Swiecki for reporting CVE-2011-2496 Brent Meshier for reporting CVE-2011-2723 Dan Kaminsky for reporting CVE-2011-3188 Yasuaki Ishimatsu for reporting CVE-2011-3209 Somnath Kotur for reporting CVE-2011-3347 Rafael Dominguez Vega for reporting CVE-2009-4067 and Peter Huewe for reporting CVE-2011-1160. The Ubuntu Security Team acknowledges Vasiliy Kulikov of Openwall and Dan Rosenberg as the original reporters of CVE-2011-1833. 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-2011-1386.html Risk factor : High
Querverweis:	Common Vulnerability Exposure (CVE) ID: CVE-2009-4067 http://labs.mwrinfosecurity.com/files/Advisories/mwri_linux-usb-buffer-overflow_2009-10-29.pdf https://bugzilla.redhat.com/show_bug.cgi?id=722393 Common Vulnerability Exposure (CVE) ID: CVE-2011-1160 http://www.openwall.com/lists/oss-security/2011/03/15/13 Common Vulnerability Exposure (CVE) ID: CVE-2011-1585 http://www.openwall.com/lists/oss-security/2011/04/15/8 SuSE Security Announcement: SUSE-SU-2015:0812 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html Common Vulnerability Exposure (CVE) ID: CVE-2011-1833 SuSE Security Announcement: SUSE-SU-2011:0898 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2011-08/msg00009.html http://www.ubuntu.com/usn/USN-1188-1 Common Vulnerability Exposure (CVE) ID: CVE-2011-2484 BugTraq ID: 48383 http://www.securityfocus.com/bid/48383 https://bugzilla.redhat.com/show_bug.cgi?id=715436 http://lists.openwall.net/linux-kernel/2011/06/16/605 http://openwall.com/lists/oss-security/2011/06/22/1 http://openwall.com/lists/oss-security/2011/06/22/2 XForce ISS Database: kernel-taskstats-dos(68150) https://exchange.xforce.ibmcloud.com/vulnerabilities/68150 Common Vulnerability Exposure (CVE) ID: CVE-2011-2496 http://www.openwall.com/lists/oss-security/2011/06/27/2 Common Vulnerability Exposure (CVE) ID: CVE-2011-2695 http://www.spinics.net/lists/linux-ext4/msg25697.html http://www.openwall.com/lists/oss-security/2011/07/15/7 http://www.openwall.com/lists/oss-security/2011/07/15/8 http://secunia.com/advisories/45193 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-2011-2723 BugTraq ID: 48929 http://www.securityfocus.com/bid/48929 HPdes Security Advisory: HPSBGN02970 http://marc.info/?l=bugtraq&m=139447903326211&w=2 http://openwall.com/lists/oss-security/2011/07/28/13 http://openwall.com/lists/oss-security/2011/07/29/1 http://www.redhat.com/support/errata/RHSA-2011-1321.html http://securitytracker.com/id?1025876 Common Vulnerability Exposure (CVE) ID: CVE-2011-2942 http://www.openwall.com/lists/oss-security/2011/10/24/3 Common Vulnerability Exposure (CVE) ID: CVE-2011-3131 BugTraq ID: 49146 http://www.securityfocus.com/bid/49146 Debian Security Information: DSA-2582 (Google Search) http://www.debian.org/security/2012/dsa-2582 http://old-list-archives.xen.org/archives/html/xen-devel/2011-06/msg01106.html http://old-list-archives.xen.org/archives/html/xen-devel/2011-08/msg00450.html http://secunia.com/advisories/45622 http://secunia.com/advisories/51468 Common Vulnerability Exposure (CVE) ID: CVE-2011-3188 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-2011-3209 Common Vulnerability Exposure (CVE) ID: CVE-2011-3347
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