USN-1161-1: Linux kernel vulnerabilities (EC2)

13 July 2011

Multiple kernel flaws have been fixed.

Releases

Packages

Details

Vasiliy Kulikov discovered that kvm did not correctly clear memory. A local
attacker could exploit this to read portions of the kernel stack, leading
to a loss of privacy. (CVE-2010-3881)

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)

Dan Rosenberg reported an error in the old ABI compatibility layer of ARM
kernels. A local attacker could exploit this flaw to cause a denial of
service or gain root privileges. (CVE-2011-1759)

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)

Timo Warns discovered that the EFI GUID partition table was not correctly
parsed. A physically local attacker that could insert mountable devices
could exploit this to crash the system or possibly gain root privileges.
(CVE-2011-1776)

Yogesh Sharma discovered that CIFS did not correctly handle UNCs that had
no prefixpaths. A local attacker with access to a CIFS partition could
exploit this to crash the system, leading to a denial of service.
(CVE-2011-3363)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 10.04

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.

Related notices

  • USN-1054-1: linux-image-2.6.32-28-powerpc-smp, linux-image-2.6.32-28-generic, linux-image-2.6.35-25-powerpc, linux-image-2.6.32-28-powerpc, linux-image-2.6.35-25-generic-pae, linux-image-2.6.35-25-omap, linux-image-2.6.35-25-server, linux-image-2.6.32-28-sparc64, linux-image-2.6.32-28-386, linux-image-2.6.32-28-virtual, linux-image-2.6.32-312-ec2, linux-image-2.6.35-25-virtual, linux-image-2.6.32-28-versatile, linux-image-2.6.32-28-generic-pae, linux, linux-image-2.6.32-28-powerpc64-smp, linux-image-2.6.32-28-ia64, linux-image-2.6.35-25-powerpc64-smp, linux-image-2.6.32-28-preempt, linux-ec2, linux-image-2.6.32-28-sparc64-smp, linux-image-2.6.35-25-powerpc-smp, linux-image-2.6.32-28-lpia, linux-image-2.6.32-28-server, linux-image-2.6.35-25-versatile, linux-image-2.6.35-25-generic
  • USN-1093-1: linux-image-2.6.32-416-dove, linux-image-2.6.32-216-dove, linux-mvl-dove
  • USN-1111-1: linux-image-2.6.15-57-hppa32, linux-image-2.6.15-57-hppa32-smp, linux-image-2.6.15-57-mckinley-smp, linux-image-2.6.15-57-server-bigiron, linux-image-2.6.15-57-sparc64-smp, linux-image-2.6.15-57-itanium, linux-image-2.6.15-57-itanium-smp, linux-image-2.6.15-57-mckinley, linux-image-2.6.15-57-386, linux-image-2.6.15-57-amd64-xeon, linux-image-2.6.15-57-686, linux-image-2.6.15-57-powerpc-smp, linux-image-2.6.15-57-powerpc64-smp, linux-source-2.6.15, linux-image-2.6.15-57-hppa64-smp, linux-image-2.6.15-57-sparc64, linux-image-2.6.15-57-amd64-k8, linux-image-2.6.15-57-amd64-generic, linux-image-2.6.15-57-k7, linux-image-2.6.15-57-server, linux-image-2.6.15-57-amd64-server, linux-image-2.6.15-57-powerpc, linux-image-2.6.15-57-hppa64
  • USN-1119-1: linux-image-2.6.35-903-omap4, linux-ti-omap4
  • USN-1146-1: linux-image-2.6.24-29-xen, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-sparc64, linux-image-2.6.24-29-powerpc64-smp, linux-image-2.6.24-29-hppa32, linux-image-2.6.24-29-rt, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-powerpc, linux-image-2.6.24-29-386, linux, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-lpiacompat, linux-image-2.6.24-29-openvz, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-powerpc-smp, linux-image-2.6.24-29-server, linux-image-2.6.24-29-itanium, linux-image-2.6.24-29-lpia, linux-image-2.6.24-29-hppa64
  • USN-1159-1: linux-image-2.6.32-417-dove, linux-mvl-dove
  • USN-1160-1: linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-powerpc64-smp, linux-image-2.6.35-30-server, linux-image-2.6.35-30-versatile, linux-image-2.6.35-30-powerpc-smp, linux-image-2.6.35-30-generic, linux-image-2.6.35-30-powerpc, linux-image-2.6.35-30-omap, linux-image-2.6.35-30-generic-pae, linux
  • USN-1162-1: linux-image-2.6.32-217-dove, linux-mvl-dove
  • USN-1164-1: linux-fsl-imx51, linux-image-2.6.31-609-imx51
  • USN-1167-1: linux-image-2.6.38-10-generic-pae, linux-image-2.6.38-10-generic, linux-image-2.6.38-10-powerpc-smp, linux-image-2.6.38-10-server, linux-image-2.6.38-10-powerpc64-smp, linux-image-2.6.38-10-versatile, linux-image-2.6.38-10-powerpc, linux-image-2.6.38-10-virtual, linux, linux-image-2.6.38-10-omap
  • USN-1168-1: linux-image-2.6.32-33-virtual, linux-image-2.6.32-33-ia64, linux-image-2.6.32-33-sparc64-smp, linux-image-2.6.32-33-powerpc64-smp, linux-image-2.6.32-33-preempt, linux-image-2.6.32-33-lpia, linux-image-2.6.32-33-generic, linux-image-2.6.32-33-powerpc, linux-image-2.6.32-33-versatile, linux-image-2.6.32-33-386, linux-image-2.6.32-33-server, linux-image-2.6.32-33-generic-pae, linux-image-2.6.32-33-sparc64, linux-image-2.6.32-33-powerpc-smp, linux
  • USN-1170-1: linux-image-2.6.24-29-xen, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-sparc64, linux-image-2.6.24-29-powerpc64-smp, linux-image-2.6.24-29-hppa32, linux-image-2.6.24-29-rt, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-powerpc, linux-image-2.6.24-29-386, linux, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-lpiacompat, linux-image-2.6.24-29-openvz, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-powerpc-smp, linux-image-2.6.24-29-server, linux-image-2.6.24-29-itanium, linux-image-2.6.24-29-lpia, linux-image-2.6.24-29-hppa64
  • USN-1183-1: linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-powerpc64-smp, linux-image-2.6.35-30-server, linux-image-2.6.35-30-versatile, linux-image-2.6.35-30-powerpc-smp, linux-image-2.6.35-30-generic, linux-image-2.6.35-30-powerpc, linux-image-2.6.35-30-omap, linux-image-2.6.35-30-generic-pae, linux
  • USN-1186-1: linux-image-2.6.24-29-xen, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-sparc64, linux-image-2.6.24-29-powerpc64-smp, linux-image-2.6.24-29-hppa32, linux-image-2.6.24-29-rt, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-powerpc, linux-image-2.6.24-29-386, linux, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-lpiacompat, linux-image-2.6.24-29-openvz, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-powerpc-smp, linux-image-2.6.24-29-server, linux-image-2.6.24-29-itanium, linux-image-2.6.24-29-lpia, linux-image-2.6.24-29-hppa64
  • USN-1187-1: linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-server, linux-image-2.6.35-30-generic, linux-image-2.6.35-30-generic-pae, linux-lts-backport-maverick
  • USN-1201-1: linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-powerpc64-smp, linux-image-2.6.35-30-server, linux-image-2.6.35-30-versatile, linux-image-2.6.35-30-powerpc-smp, linux-image-2.6.35-30-generic, linux-image-2.6.35-30-powerpc, linux-image-2.6.35-30-omap, linux-image-2.6.35-30-generic-pae, linux
  • USN-1202-1: linux-image-2.6.35-903-omap4, linux-ti-omap4
  • USN-1204-1: linux-fsl-imx51, linux-image-2.6.31-610-imx51
  • USN-1205-1: linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-server, linux-image-2.6.35-30-generic, linux-image-2.6.35-30-generic-pae, linux-lts-backport-maverick
  • USN-1212-1: linux-ti-omap4, linux-image-2.6.38-1209-omap4
  • USN-1219-1: linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-server, linux-image-2.6.35-30-generic, linux-image-2.6.35-30-generic-pae, linux-lts-backport-maverick
  • USN-1220-1: linux-image-2.6.35-903-omap4, linux-ti-omap4
  • USN-1225-1: linux-image-2.6.24-29-xen, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-sparc64, linux-image-2.6.24-29-powerpc64-smp, linux-image-2.6.24-29-hppa32, linux-image-2.6.24-29-rt, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-powerpc, linux-image-2.6.24-29-386, linux, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-lpiacompat, linux-image-2.6.24-29-openvz, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-powerpc-smp, linux-image-2.6.24-29-server, linux-image-2.6.24-29-itanium, linux-image-2.6.24-29-lpia, linux-image-2.6.24-29-hppa64
  • USN-1227-1: linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-powerpc64-smp, linux-image-2.6.35-30-server, linux-image-2.6.35-30-versatile, linux-image-2.6.35-30-powerpc-smp, linux-image-2.6.35-30-generic, linux-image-2.6.35-30-powerpc, linux-image-2.6.35-30-omap, linux-image-2.6.35-30-generic-pae, linux
  • USN-1228-1: linux-ti-omap4, linux-image-2.6.38-1209-omap4
  • USN-1241-1: linux-fsl-imx51, linux-image-2.6.31-611-imx51
  • USN-1242-1: linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-server, linux-image-2.6.35-30-generic, linux-image-2.6.35-30-generic-pae, linux-lts-backport-maverick
  • USN-1243-1: linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-powerpc64-smp, linux-image-2.6.35-30-server, linux-image-2.6.35-30-versatile, linux-image-2.6.35-30-powerpc-smp, linux-image-2.6.35-30-generic, linux-image-2.6.35-30-powerpc, linux-image-2.6.35-30-omap, linux-image-2.6.35-30-generic-pae, linux
  • USN-1244-1: linux-image-2.6.35-903-omap4, linux-ti-omap4
  • USN-1256-1: linux-image-2.6.38-12-generic-pae, linux-image-2.6.38-12-generic, linux-image-2.6.38-12-server, linux-lts-backport-natty, linux-image-2.6.38-12-virtual
  • USN-1281-1: linux-ti-omap4, linux-image-2.6.38-1209-omap4
  • USN-1332-1: linux-image-2.6.35-32-generic-pae, linux-image-2.6.35-32-server, linux-lts-backport-maverick, linux-image-2.6.35-32-generic, linux-image-2.6.35-32-virtual
  • USN-1341-1: linux-image-2.6.35-32-generic-pae, linux, linux-image-2.6.35-32-server, linux-image-2.6.35-32-powerpc, linux-image-2.6.35-32-powerpc64-smp, linux-image-2.6.35-32-powerpc-smp, linux-image-2.6.35-32-generic, linux-image-2.6.35-32-omap, linux-image-2.6.35-32-virtual, linux-image-2.6.35-32-versatile
  • USN-1383-1: linux-ti-omap4, linux-image-2.6.38-1209-omap4
  • USN-1394-1: linux-image-2.6.35-903-omap4, linux-ti-omap4