Test ID:	1.3.6.1.4.1.25623.1.0.70292
Category:	Red Hat Local Security Checks
Title:	RedHat Security Advisory RHSA-2011:1321
Summary:	NOSUMMARY
Description:	Description: The remote host is missing updates announced in advisory RHSA-2011:1321. The kernel packages contain the Linux kernel. Security fix: * A flaw in skb_gro_header_slow() in the Linux kernel could lead to GRO (Generic Receive Offload) fields being left in an inconsistent state. An attacker on the local network could use this flaw to trigger a denial of service. (CVE-2011-2723, Moderate) Red Hat would like to thank Brent Meshier for reporting this issue. Bug fixes: * When reading a file from a subdirectory in /proc/bus/pci/ while hot-unplugging the device related to that file, the system will crash. Now, the kernel correctly handles the simultaneous removal of a device and access to the representation of that device in the proc file system. (BZ#713454) * RHSA-2011:0017 introduced a regression: Non-disk SCSI devices (except for tape drives) such as enclosure or CD-ROM devices were hidden when attached to a SAS based RAID controller that uses the megaraid_sas driver. With this update, such devices are accessible, as expected. (BZ#726487) * The fix for CVE-2010-3432 provided in RHSA-2011:0004 introduced a regression: Information in sctp_packet_config(), which was called before appending data chunks to a packet, was not reset, causing considerably poor SCTP (Stream Control Transmission Protocol) performance. With this update, the packet information is reset after transmission. (BZ#727591) * Certain systems do not correctly set the ACPI FADT APIC mode bit. They set the bit to cluster mode instead of physical mode which caused these systems to boot without the TSC (Time Stamp Counter). With this update, the ACPI FADT check has been removed due to its unreliability. (BZ#728162) * Performance when invalidating and rereading cached data as a glock moves around the cluster with GFS2 is improved. (BZ#729082) * Performance issues occurred when multiple nodes attempted to call mmap() on the same inode at the same time on a GFS2 file system, as it was using an exclusive glock. With this update, a shared lock is used when noatime is set on the mount, allowing mmap() operations to occur in parallel, fixing this bug. Note that this issue only refers to mmap() system calls, and not to subsequent page faults. (BZ#729090) * Some of the functions in the GFS2 file system were not reserving enough space for the resource group header in a transaction and for resource groups bit blocks that get added when a memory allocation is performed. That resulted in failed write and allocation operations. With this update, GFS2 makes sure to reserve space in the described scenario, using the new gfs2_rg_blocks() inline function. (BZ#729092) * When GFS2 grew the file system, it never reread the rindex file during the grow. This is necessary for large grows when the file system is almost full, and GFS2 needs to use some of the space allocated earlier in the grow to complete it. Now, if GFS2 fails to reserve the necessary space and the rindex data is not up-to-date, it rereads it. (BZ#729094) * Previously, when the Xen hypervisor split a 2 MB page into 4 KB pages, it linked the new page from PDE (Page Directory Entry) before it filled entries of the page with appropriate data. Consequently, when doing a live migration with EPT (Extended Page Tables) enabled on a non-idle guest running with more than two virtual CPUs, the guest often terminated unexpectedly. With this update, the Xen hypervisor prepares the page table entry first, and then links it in. (BZ#730684) * Changes made to TSC as a clock source for IRQs caused virtual machines running under the VMware ESX or ESXi hypervisors to become unresponsive during the initial kernel boot process. With this update, the enable_tsc_timer flag enables the do_timer_tsc_timekeeping() function to be called in the do_timer_interrupt_hook() function, preventing a deadlock in the timer interrupt handler. (BZ#730688) Users should upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect. 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-2011-1321.html Risk factor : Medium
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2011-2723 1025876 http://securitytracker.com/id?1025876 48929 http://www.securityfocus.com/bid/48929 HPSBGN02970 http://marc.info/?l=bugtraq&m=139447903326211&w=2 RHSA-2011:1321 http://www.redhat.com/support/errata/RHSA-2011-1321.html [oss-security] 20110728 CVE request: kernel: gro: Only reset frag0 when skb can be pulled http://openwall.com/lists/oss-security/2011/07/28/13 [oss-security] 20110729 Re: CVE request: kernel: gro: Only reset frag0 when skb can be pulled http://openwall.com/lists/oss-security/2011/07/29/1 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=17dd759c67f21e34f2156abcf415e1f60605a188 http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.4 https://bugzilla.redhat.com/show_bug.cgi?id=726552 Common Vulnerability Exposure (CVE) ID: CVE-2010-3432 20111013 VMSA-2011-0012 VMware ESXi and ESX updates to third party libraries and ESX Service Console http://www.securityfocus.com/archive/1/520102/100/0/threaded 42400 http://secunia.com/advisories/42400 42778 http://secunia.com/advisories/42778 42789 http://secunia.com/advisories/42789 43480 http://www.securityfocus.com/bid/43480 46397 http://secunia.com/advisories/46397 ADV-2010-3113 http://www.vupen.com/english/advisories/2010/3113 ADV-2011-0012 http://www.vupen.com/english/advisories/2011/0012 ADV-2011-0024 http://www.vupen.com/english/advisories/2011/0024 ADV-2011-0298 http://www.vupen.com/english/advisories/2011/0298 DSA-2126 http://www.debian.org/security/2010/dsa-2126 RHSA-2010:0842 http://www.redhat.com/support/errata/RHSA-2010-0842.html RHSA-2010:0936 http://www.redhat.com/support/errata/RHSA-2010-0936.html RHSA-2010:0958 http://www.redhat.com/support/errata/RHSA-2010-0958.html RHSA-2011:0004 http://www.redhat.com/support/errata/RHSA-2011-0004.html SUSE-SA:2011:001 http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00000.html SUSE-SA:2011:007 http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html USN-1000-1 http://www.ubuntu.com/usn/USN-1000-1 [netdev] 20100915 [PATCH] net: SCTP remote/local Denial of Service vulnerability description and fix http://marc.info/?l=linux-netdev&m=128453869227715&w=3 [oss-security] 20100924 CVE Request -- Linux/SCTP DoS in sctp_packet_config() http://marc.info/?l=oss-security&m=128534569803598&w=2 [oss-security] 20100925 Re: CVE Request -- Linux/SCTP DoS in sctp_packet_config() http://marc.info/?l=oss-security&m=128537701808336&w=2 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4bdab43323b459900578b200a4b8cf9713ac8fab http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35.6 http://www.vmware.com/security/advisories/VMSA-2011-0012.html https://bugzilla.redhat.com/show_bug.cgi?id=637675
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