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========================================================================== Ubuntu Security Notice USN-1168-1 July 15, 2011
linux vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 10.04 LTS
Summary:
Multiple kernel flaws have been fixed.
Software Description: - linux: Linux kernel
Details:
Timo Warns discovered that the LDM disk partition handling code did not correctly handle certain values. By inserting a specially crafted disk device, a local attacker could exploit this to gain root privileges. (CVE-2011-1017)
Neil Horman discovered that NFSv4 did not correctly handle certain orders of operation with ACL data. A remote attacker with access to an NFSv4 mount could exploit this to crash the system, leading to a denial of service. (CVE-2011-1090)
Timo Warns discovered that OSF partition parsing routines did not correctly clear memory. A local attacker with physical access could plug in a specially crafted block device to read kernel memory, leading to a loss of privacy. (CVE-2011-1163)
Dan Rosenberg discovered that MPT devices did not correctly validate certain values in ioctl calls. If these drivers were loaded, a local attacker could exploit this to read arbitrary kernel memory, leading to a loss of privacy. (CVE-2011-1494, CVE-2011-1495)
Tavis Ormandy discovered that the pidmap function did not correctly handle large requests. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-1593)
Oliver Hartkopp and Dave Jones discovered that the CAN network driver did not correctly validate certain socket structures. If this driver was loaded, a local attacker could crash the system, leading to a denial of service. (CVE-2011-1598, CVE-2011-1748)
Vasiliy Kulikov discovered that the AGP driver did not check certain ioctl values. A local attacker with access to the video subsystem could exploit this to crash the system, leading to a denial of service, or possibly gain root privileges. (CVE-2011-1745, CVE-2011-2022)
Vasiliy Kulikov discovered that the AGP driver did not check the size of certain memory allocations. A local attacker with access to the video subsystem could exploit this to run the system out of memory, leading to a denial of service. (CVE-2011-1746, CVE-2011-1747)
Dan Rosenberg discovered that the DCCP stack did not correctly handle certain packet structures. A remote attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-1770)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 10.04 LTS: linux-image-2.6.32-33-386 2.6.32-33.70 linux-image-2.6.32-33-generic 2.6.32-33.70 linux-image-2.6.32-33-generic-pae 2.6.32-33.70 linux-image-2.6.32-33-ia64 2.6.32-33.70 linux-image-2.6.32-33-lpia 2.6.32-33.70 linux-image-2.6.32-33-powerpc 2.6.32-33.70 linux-image-2.6.32-33-powerpc-smp 2.6.32-33.70 linux-image-2.6.32-33-powerpc64-smp 2.6.32-33.70 linux-image-2.6.32-33-preempt 2.6.32-33.70 linux-image-2.6.32-33-server 2.6.32-33.70 linux-image-2.6.32-33-sparc64 2.6.32-33.70 linux-image-2.6.32-33-sparc64-smp 2.6.32-33.70 linux-image-2.6.32-33-versatile 2.6.32-33.70 linux-image-2.6.32-33-virtual 2.6.32-33.70
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-1168-1 CVE-2011-1017, CVE-2011-1090, CVE-2011-1163, CVE-2011-1494, CVE-2011-1495, CVE-2011-1593, CVE-2011-1598, CVE-2011-1745, CVE-2011-1746, CVE-2011-1747, CVE-2011-1748, CVE-2011-1770, CVE-2011-2022
Package Information: https://launchpad.net/ubuntu/+source/linux/2.6.32-33.70
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