User: Password:
|
|
Subscribe / Log in / New account

Ubuntu alert USN-1422-1 (linux)

From:  John Johansen <john.johansen@canonical.com>
To:  ubuntu-security-announce@lists.ubuntu.com
Subject:  [USN-1422-1] Linux kernel vulnerabilities
Date:  Thu, 12 Apr 2012 12:12:41 -0700
Message-ID:  <4F872929.2020007@canonical.com>
Archive-link:  Article, Thread

========================================================================== Ubuntu Security Notice USN-1422-1 April 12, 2012 linux vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 11.04 Summary: Several security issues were fixed in the kernel. Software Description: - linux: Linux kernel Details: Sasha Levin discovered a flaw in the permission checking for device assignments requested via the kvm ioctl in the Linux kernel. A local user could use this flaw to crash the system causing a denial of service. (CVE-2011-4347) Stephan Bärwolf discovered a flaw in the KVM (kernel-based virtual machine) subsystem of the Linux kernel. A local unprivileged user can crash use this flaw to crash VMs causing a deny of service. (CVE-2012-0045) H. Peter Anvin reported a flaw in the Linux kernel that could crash the system. A local user could exploit this flaw to crash the system. (CVE-2012-1097) A flaw was discovered in the Linux kernel's cgroups subset. A local attacker could use this flaw to crash the system. (CVE-2012-1146) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 11.04: linux-image-2.6.38-14-generic 2.6.38-14.58 linux-image-2.6.38-14-generic-pae 2.6.38-14.58 linux-image-2.6.38-14-omap 2.6.38-14.58 linux-image-2.6.38-14-powerpc 2.6.38-14.58 linux-image-2.6.38-14-powerpc-smp 2.6.38-14.58 linux-image-2.6.38-14-powerpc64-smp 2.6.38-14.58 linux-image-2.6.38-14-server 2.6.38-14.58 linux-image-2.6.38-14-versatile 2.6.38-14.58 linux-image-2.6.38-14-virtual 2.6.38-14.58 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. If you use linux-restricted-modules, you have to update that package as well to get modules which work with the new kernel version. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-server, linux-powerpc), a standard system upgrade will automatically perform this as well. References: http://www.ubuntu.com/usn/usn-1422-1 CVE-2011-4347, CVE-2012-0045, CVE-2012-1097, CVE-2012-1146 Package Information: https://launchpad.net/ubuntu/+source/linux/2.6.38-14.58 -- ubuntu-security-announce mailing list ubuntu-security-announce@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security...


(Log in to post comments)


Copyright © 2017, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds