USN-1041-1: Linux kernel vulnerabilities

10 January 2011

Multiple security flaws in Linux kernel.

Releases

Packages

  • linux - Linux kernel
  • linux-ec2 - Linux kernel for EC2

Details

Louis Rilling and Matthieu Fertré reported a use after free error in the
Linux kernel's futex_wait function. A local user could exploit this flaw to
cause a denial of service (system crash) or possibly gain privileges via a
specially crafted application. (CVE-2014-0205)

Ben Hawkes discovered that the Linux kernel did not correctly filter
registers on 64bit kernels when performing 32bit system calls. On a 64bit
system, a local attacker could manipulate 32bit system calls to gain root
privileges. (CVE-2010-3301)

Dan Rosenberg discovered that the btrfs filesystem did not correctly
validate permissions when using the clone function. A local attacker could
overwrite the contents of file handles that were opened for append-only, or
potentially read arbitrary contents, leading to a loss of privacy.
(CVE-2010-2537, CVE-2010-2538)

Dave Chinner discovered that the XFS filesystem did not correctly order
inode lookups when exported by NFS. A remote attacker could exploit this to
read or write disk blocks that had changed file assignment or had become
unlinked, leading to a loss of privacy. (CVE-2010-2943)

Kees Cook discovered that the Intel i915 graphics driver did not correctly
validate memory regions. A local attacker with access to the video card
could read and write arbitrary kernel memory to gain root privileges.
(CVE-2010-2962)

Robert Swiecki discovered that ftrace did not correctly handle mutexes. A
local attacker could exploit this to crash the kernel, leading to a denial
of service. (CVE-2010-3079)

Dan Rosenberg discovered that several network ioctls did not clear kernel
memory correctly. A local user could exploit this to read kernel stack
memory, leading to a loss of privacy. (CVE-2010-3296, CVE-2010-3297,
CVE-2010-3298)

It was discovered that KVM did not correctly initialize certain CPU
registers. A local attacker could exploit this to crash the system, leading
to a denial of service. (CVE-2010-3698)

Brad Spengler discovered that stack memory for new a process was not
correctly calculated. A local attacker could exploit this to crash the
system, leading to a denial of service. (CVE-2010-3858)

Kees Cook discovered that the ethtool interface did not correctly clear
kernel memory. A local attacker could read kernel heap memory, leading to a
loss of privacy. (CVE-2010-3861)

Kees Cook and Vasiliy Kulikov discovered that the shm interface did not
clear kernel memory correctly. A local attacker could exploit this to read
kernel stack memory, leading to a loss of privacy. (CVE-2010-4072)

Dan Rosenberg discovered that the RME Hammerfall DSP audio interface driver
did not correctly clear kernel memory. A local attacker could exploit this
to read kernel stack memory, leading to a loss of privacy. (CVE-2010-4080,
CVE-2010-4081)

James Bottomley discovered that the ICP vortex storage array controller
driver did not validate certain sizes. A local attacker on a 64bit system
could exploit this to crash the kernel, leading to a denial of service.
(CVE-2010-4157)

Alan Cox discovered that the HCI UART driver did not correctly check if a
write operation was available. If the mmap_min-addr sysctl was changed from
the Ubuntu default to a value of 0, a local attacker could exploit this
flaw to gain root privileges. (CVE-2010-4242)

Kees Cook discovered that some ethtool functions did not correctly clear
heap memory. A local attacker with CAP_NET_ADMIN privileges could exploit
this to read portions of kernel heap memory, leading to a loss of privacy.
(CVE-2010-4655)

Update instructions

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

Ubuntu 9.10
Ubuntu 10.10
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 Ubuntu 10.04 LTS and
Ubuntu 10.10 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-1057-1: linux-source-2.6.15, linux-image-2.6.15-55-server-bigiron, linux-image-2.6.15-55-mckinley-smp, linux-image-2.6.15-55-686, linux-image-2.6.15-55-k7, linux-image-2.6.15-55-hppa64, linux-image-2.6.15-55-itanium-smp, linux-image-2.6.15-55-amd64-k8, linux-image-2.6.15-55-386, linux-image-2.6.15-55-sparc64, linux-image-2.6.15-55-server, linux-image-2.6.15-55-powerpc-smp, linux-image-2.6.15-55-powerpc64-smp, linux-image-2.6.15-55-amd64-xeon, linux-image-2.6.15-55-amd64-generic, linux-image-2.6.15-55-hppa32-smp, linux-image-2.6.15-55-amd64-server, linux-image-2.6.15-55-sparc64-smp, linux-image-2.6.15-55-mckinley, linux-image-2.6.15-55-hppa64-smp, linux-image-2.6.15-55-hppa32, linux-image-2.6.15-55-powerpc, linux-image-2.6.15-55-itanium
  • USN-1187-1: linux-lts-backport-maverick, linux-image-2.6.35-30-server, linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-generic-pae, linux-image-2.6.35-30-generic
  • USN-1083-1: linux-lts-backport-maverick, linux-image-2.6.35-25-generic, linux-image-2.6.35-25-generic-pae, linux-image-2.6.35-25-virtual, linux-image-2.6.35-25-server
  • USN-1105-1: linux-image-2.6.24-29-sparc64, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-itanium, linux-image-2.6.24-29-386, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-openvz, linux-image-2.6.24-29-rt, linux-image-2.6.24-29-lpia, linux, linux-image-2.6.24-29-powerpc64-smp, linux-image-2.6.24-29-powerpc-smp, linux-image-2.6.24-29-powerpc, linux-image-2.6.24-29-lpiacompat, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-hppa32, linux-image-2.6.24-29-xen, linux-image-2.6.24-29-hppa64, linux-image-2.6.24-29-server
  • USN-1204-1: linux-image-2.6.31-610-imx51, linux-fsl-imx51
  • USN-1202-1: linux-image-2.6.35-903-omap4, linux-ti-omap4
  • USN-1146-1: linux-image-2.6.24-29-sparc64, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-itanium, linux-image-2.6.24-29-386, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-openvz, linux-image-2.6.24-29-rt, linux-image-2.6.24-29-lpia, linux, linux-image-2.6.24-29-powerpc64-smp, linux-image-2.6.24-29-powerpc-smp, linux-image-2.6.24-29-powerpc, linux-image-2.6.24-29-lpiacompat, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-hppa32, linux-image-2.6.24-29-xen, linux-image-2.6.24-29-hppa64, linux-image-2.6.24-29-server
  • USN-988-1: linux-image-2.6.31-22-generic-pae, linux-image-2.6.32-24-versatile, linux-image-2.6.15-55-server-bigiron, linux-image-2.6.24-28-hppa32, linux-image-2.6.24-28-sparc64-smp, linux-image-2.6.24-28-lpia, linux-image-2.6.32-24-generic-dbgsym, linux-image-2.6.24-28-virtual, linux-image-2.6.31-22-sparc64-smp, linux-image-2.6.32-24-preempt-dbgsym, linux-image-2.6.32-24-ia64, linux-image-2.6.15-55-itanium-smp, linux-image-2.6.31-22-sparc64, linux-image-2.6.32-24-generic-pae-dbgsym, linux-image-2.6.32-24-generic-pae, linux-image-2.6.24-28-sparc64, linux-image-2.6.15-55-amd64-server, linux-image-2.6.32-24-sparc64, linux-image-2.6.15-55-hppa64-smp, linux-image-2.6.32-24-sparc64-dbgsym, linux-image-2.6.28-19-server, linux-image-2.6.31-22-lpia, linux-source-2.6.15, linux-image-2.6.28-19-ixp4xx, linux-image-2.6.15-55-mckinley-smp, linux-image-2.6.24-28-server, linux-image-2.6.32-24-server-dbgsym, linux-image-2.6.32-24-versatile-dbgsym, linux, linux-image-2.6.15-55-itanium, linux-image-2.6.15-55-386, linux-image-2.6.31-22-generic, linux-image-2.6.15-55-sparc64, linux-image-2.6.15-55-server, linux-image-2.6.31-22-server, linux-image-2.6.24-28-386, linux-image-2.6.32-24-lpia, linux-image-2.6.31-22-powerpc, linux-image-2.6.24-28-hppa64, linux-image-2.6.31-22-386, linux-image-2.6.32-24-powerpc-dbgsym, linux-image-2.6.31-22-ia64, linux-image-2.6.32-24-lpia-dbgsym, linux-image-2.6.32-24-ia64-dbgsym, linux-image-2.6.15-55-mckinley, linux-image-2.6.32-24-386-dbgsym, linux-image-2.6.32-24-server, linux-image-2.6.15-55-hppa32, linux-image-2.6.32-24-powerpc64-smp, linux-image-2.6.28-19-lpia, linux-image-2.6.32-24-generic, linux-image-2.6.15-55-686, linux-image-2.6.24-28-openvz, linux-image-2.6.32-24-virtual, linux-image-2.6.15-55-amd64-k8, linux-image-2.6.32-24-386, linux-image-2.6.24-28-generic, linux-image-2.6.24-28-itanium, linux-image-2.6.28-19-iop32x, linux-image-2.6.28-19-imx51, linux-image-2.6.28-19-virtual, linux-image-2.6.32-24-powerpc-smp-dbgsym, linux-image-2.6.15-55-hppa32-smp, linux-image-2.6.15-55-sparc64-smp, linux-image-2.6.32-24-sparc64-smp-dbgsym, linux-image-2.6.32-24-sparc64-smp, linux-image-2.6.28-19-generic, linux-image-2.6.24-28-powerpc, linux-image-2.6.32-24-preempt, linux-image-2.6.32-24-powerpc-smp, linux-image-2.6.24-28-powerpc-smp, linux-image-2.6.24-28-rt, linux-image-2.6.15-55-k7, linux-image-2.6.24-28-lpiacompat, linux-image-2.6.31-22-powerpc64-smp, linux-image-2.6.15-55-hppa64, linux-image-2.6.31-22-virtual, linux-image-2.6.32-24-powerpc64-smp-dbgsym, linux-image-2.6.28-19-versatile, linux-image-2.6.31-22-powerpc-smp, linux-image-2.6.24-28-xen, linux-image-2.6.15-55-powerpc-smp, linux-image-2.6.15-55-powerpc64-smp, linux-image-2.6.15-55-amd64-xeon, linux-image-2.6.15-55-amd64-generic, linux-image-2.6.24-28-powerpc64-smp, linux-image-2.6.32-24-powerpc, linux-image-2.6.15-55-powerpc, linux-image-2.6.24-28-mckinley
  • USN-1164-1: linux-image-2.6.31-609-imx51, linux-fsl-imx51
  • USN-1072-1: linux-image-2.6.24-28-powerpc, linux-image-2.6.24-28-powerpc-smp, linux-image-2.6.24-28-rt, linux-image-2.6.24-28-hppa32, linux-image-2.6.24-28-sparc64-smp, linux-image-2.6.24-28-lpia, linux-image-2.6.24-28-server, linux-image-2.6.24-28-virtual, linux-image-2.6.24-28-lpiacompat, linux-image-2.6.24-28-openvz, linux, linux-image-2.6.24-28-generic, linux-image-2.6.24-28-itanium, linux-image-2.6.24-28-xen, linux-image-2.6.24-28-386, linux-image-2.6.24-28-hppa64, linux-image-2.6.24-28-sparc64, linux-image-2.6.24-28-powerpc64-smp, linux-image-2.6.24-28-mckinley
  • USN-1119-1: linux-image-2.6.35-903-omap4, linux-ti-omap4
  • USN-1073-1: linux-image-2.6.31-22-ia64, linux-image-2.6.31-22-lpia, linux-image-2.6.31-22-powerpc-smp, linux-image-2.6.31-22-sparc64-smp, linux-image-2.6.31-22-generic, linux-ec2, linux-image-2.6.31-22-generic-pae, linux-image-2.6.31-22-powerpc64-smp, linux-image-2.6.31-22-server, linux-image-2.6.31-22-powerpc, linux-image-2.6.31-22-386, linux-image-2.6.31-22-sparc64, linux-image-2.6.31-307-ec2, linux-image-2.6.31-22-virtual, linux
  • USN-1071-1: linux-source-2.6.15, linux-image-2.6.15-55-server-bigiron, linux-image-2.6.15-55-mckinley-smp, linux-image-2.6.15-55-686, linux-image-2.6.15-55-k7, linux-image-2.6.15-55-hppa64, linux-image-2.6.15-55-itanium-smp, linux-image-2.6.15-55-amd64-k8, linux-image-2.6.15-55-386, linux-image-2.6.15-55-sparc64, linux-image-2.6.15-55-server, linux-image-2.6.15-55-powerpc-smp, linux-image-2.6.15-55-powerpc64-smp, linux-image-2.6.15-55-amd64-xeon, linux-image-2.6.15-55-amd64-generic, linux-image-2.6.15-55-hppa32-smp, linux-image-2.6.15-55-amd64-server, linux-image-2.6.15-55-sparc64-smp, linux-image-2.6.15-55-mckinley, linux-image-2.6.15-55-hppa64-smp, linux-image-2.6.15-55-hppa32, linux-image-2.6.15-55-powerpc, linux-image-2.6.15-55-itanium
  • USN-1074-1: linux-fsl-imx51, linux-image-2.6.31-112-imx51
  • USN-1089-1: linux-image-2.6.31-23-lpia, linux-ec2, linux-image-2.6.31-23-ia64, linux-image-2.6.31-23-powerpc64-smp, linux-image-2.6.31-23-virtual, linux-image-2.6.31-23-386, linux-image-2.6.31-23-powerpc, linux-image-2.6.31-308-ec2, linux-image-2.6.31-23-sparc64-smp, linux-image-2.6.31-23-sparc64, linux-image-2.6.31-23-generic, linux-image-2.6.31-23-powerpc-smp, linux, linux-image-2.6.31-23-server, linux-image-2.6.31-23-generic-pae
  • USN-1093-1: linux-image-2.6.32-416-dove, linux-mvl-dove, linux-image-2.6.32-216-dove
  • USN-1081-1: linux-image-2.6.35-27-powerpc-smp, linux-image-2.6.35-27-powerpc64-smp, linux-image-2.6.35-27-versatile, linux-image-2.6.35-27-generic, linux-image-2.6.35-27-generic-pae, linux-image-2.6.35-27-virtual, linux-image-2.6.35-27-powerpc, linux-image-2.6.35-27-server, linux, linux-image-2.6.35-27-omap
  • USN-1074-2: linux-image-2.6.31-608-imx51, linux-fsl-imx51
  • USN-1092-1: linux-image-2.6.15-57-amd64-server, linux-source-2.6.15, linux-image-2.6.15-57-mckinley, linux-image-2.6.15-57-itanium, linux-image-2.6.15-57-686, linux-image-2.6.15-57-server-bigiron, linux-image-2.6.15-57-server, linux-image-2.6.15-57-386, linux-image-2.6.15-57-k7, linux-image-2.6.15-57-mckinley-smp, linux-image-2.6.15-57-sparc64, linux-image-2.6.15-57-amd64-k8, linux-image-2.6.15-57-powerpc, linux-image-2.6.15-57-sparc64-smp, linux-image-2.6.15-57-powerpc-smp, linux-image-2.6.15-57-powerpc64-smp, linux-image-2.6.15-57-hppa32, linux-image-2.6.15-57-hppa64, linux-image-2.6.15-57-amd64-generic, linux-image-2.6.15-57-hppa64-smp, linux-image-2.6.15-57-itanium-smp, linux-image-2.6.15-57-amd64-xeon, linux-image-2.6.15-57-hppa32-smp