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USN-1141-1: Linux kernel vulnerabilities

1 June 2011

Multiple kernel vulnerabilities have been fixed.

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Details

Brad Spengler discovered that the kernel did not correctly account for
userspace memory allocations during exec() calls. A local attacker could
exploit this to consume all system memory, leading to a denial of service.
(CVE-2010-4243)

Alexander Duyck discovered that the Intel Gigabit Ethernet driver did not
correctly handle certain configurations. If such a device was configured
without VLANs, a remote attacker could crash the system, leading to a
denial of service. (CVE-2010-4263)

Nelson Elhage discovered that Econet did not correctly handle AUN packets
over UDP. A local attacker could send specially crafted traffic to crash
the system, leading to a denial of service. (CVE-2010-4342)

Dan Rosenberg discovered that IRDA did not correctly check the size of
buffers. On non-x86 systems, a local attacker could exploit this to read
kernel heap memory, leading to a loss of privacy. (CVE-2010-4529)

Dan Rosenburg discovered that the CAN subsystem leaked kernel addresses
into the /proc filesystem. A local attacker could use this to increase the
chances of a successful memory corruption exploit. (CVE-2010-4565)

Kees Cook discovered that the IOWarrior USB device driver did not correctly
check certain size fields. A local attacker with physical access could plug
in a specially crafted USB device to crash the system or potentially gain
root privileges. (CVE-2010-4656)

Goldwyn Rodrigues discovered that the OCFS2 filesystem did not correctly
clear memory when writing certain file holes. A local attacker could
exploit this to read uninitialized data from the disk, leading to a loss of
privacy. (CVE-2011-0463)

Dan Carpenter discovered that the TTPCI DVB driver did not check certain
values during an ioctl. If the dvb-ttpci module was loaded, a local
attacker could exploit this to crash the system, leading to a denial of
service, or possibly gain root privileges. (CVE-2011-0521)

Jens Kuehnel discovered that the InfiniBand driver contained a race
condition. On systems using InfiniBand, a local attacker could send
specially crafted requests to crash the system, leading to a denial of
service. (CVE-2011-0695)

Dan Rosenberg discovered that XFS did not correctly initialize memory. A
local attacker could make crafted ioctl calls to leak portions of kernel
stack memory, leading to a loss of privacy. (CVE-2011-0711)

Rafael Dominguez Vega discovered that the caiaq Native Instruments USB
driver did not correctly validate string lengths. A local attacker with
physical access could plug in a specially crafted USB device to crash the
system or potentially gain root privileges. (CVE-2011-0712)

Kees Cook reported that /proc/pid/stat did not correctly filter certain
memory locations. A local attacker could determine the memory layout of
processes in an attempt to increase the chances of a successful memory
corruption exploit. (CVE-2011-0726)

Timo Warns discovered that MAC partition parsing routines did not correctly
calculate block counts. A local attacker with physical access could plug in
a specially crafted block device to crash the system or potentially gain
root privileges. (CVE-2011-1010)

Timo Warns discovered that LDM partition parsing routines did not correctly
calculate block counts. A local attacker with physical access could plug in
a specially crafted block device to crash the system, leading to a denial
of service. (CVE-2011-1012)

Matthiew Herrb discovered that the drm modeset interface did not correctly
handle a signed comparison. A local attacker could exploit this to crash
the system or possibly gain root privileges. (CVE-2011-1013)

Marek Olšák discovered that the Radeon GPU drivers did not correctly
validate certain registers. On systems with specific hardware, a local
attacker could exploit this to write to arbitrary video memory.
(CVE-2011-1016)

Vasiliy Kulikov discovered that the CAP_SYS_MODULE capability was not
needed to load kernel modules. A local attacker with the CAP_NET_ADMIN
capability could load existing kernel modules, possibly increasing the
attack surface available on the system. (CVE-2011-1019)

Vasiliy Kulikov discovered that the Bluetooth stack did not correctly clear
memory. A local attacker could exploit this to read kernel stack memory,
leading to a loss of privacy. (CVE-2011-1078)

Vasiliy Kulikov discovered that the Bluetooth stack did not correctly check
that device name strings were NULL terminated. A local attacker could
exploit this to crash the system, leading to a denial of service, or leak
contents of kernel stack memory, leading to a loss of privacy.
(CVE-2011-1079)

Vasiliy Kulikov discovered that bridge network filtering did not check that
name fields were NULL terminated. A local attacker could exploit this to
leak contents of kernel stack memory, leading to a loss of privacy.
(CVE-2011-1080)

Nelson Elhage discovered that the epoll subsystem did not correctly handle
certain structures. A local attacker could create malicious requests that
would hang the system, leading to a denial of service. (CVE-2011-1082)

Johan Hovold discovered that the DCCP network stack did not correctly
handle certain packet combinations. A remote attacker could send specially
crafted network traffic that would crash the system, leading to a denial of
service. (CVE-2011-1093)

Peter Huewe discovered that the TPM device did not correctly initialize
memory. A local attacker could exploit this to read kernel heap memory
contents, leading to a loss of privacy. (CVE-2011-1160)

Vasiliy Kulikov discovered that the netfilter code did not check certain
strings copied from userspace. A local attacker with netfilter access could
exploit this to read kernel memory or crash the system, leading to a denial
of service. (CVE-2011-1170, CVE-2011-1171, CVE-2011-1172, CVE-2011-2534)

Vasiliy Kulikov discovered that the Acorn Universal Networking driver did
not correctly initialize memory. A remote attacker could send specially
crafted traffic to read kernel stack memory, leading to a loss of privacy.
(CVE-2011-1173)

Dan Rosenberg discovered that the IRDA subsystem did not correctly check
certain field sizes. If a system was using IRDA, a remote attacker could
send specially crafted traffic to crash the system or gain root privileges.
(CVE-2011-1180)

Julien Tinnes discovered that the kernel did not correctly validate the
signal structure from tkill(). A local attacker could exploit this to send
signals to arbitrary threads, possibly bypassing expected restrictions.
(CVE-2011-1182)

Dan Rosenberg reported errors in the OSS (Open Sound System) MIDI
interface. A local attacker on non-x86 systems might be able to cause a
denial of service. (CVE-2011-1476)

Dan Rosenberg reported errors in the kernel's OSS (Open Sound System)
driver for Yamaha FM synthesizer chips. A local user can exploit this to
cause memory corruption, causing a denial of service or privilege
escalation. (CVE-2011-1477)

Ryan Sweat discovered that the GRO code did not correctly validate memory.
In some configurations on systems using VLANs, a remote attacker could send
specially crafted traffic to crash the system, leading to a denial of
service. (CVE-2011-1478)

It was discovered that the Stream Control Transmission Protocol (SCTP)
implementation incorrectly calculated lengths. If the net.sctp.addip_enable
variable was turned on, a remote attacker could send specially crafted
traffic to crash the system. (CVE-2011-1573)

A flaw was found in the b43 driver in the Linux kernel. An attacker could
use this flaw to cause a denial of service if the system has an active
wireless interface using the b43 driver. (CVE-2011-3359)

Maynard Johnson discovered that on POWER7, certain speculative events may
raise a performance monitor exception. A local attacker could exploit this
to crash the system, leading to a denial of service. (CVE-2011-4611)

Dan Rosenberg discovered flaws in the linux Rose (X.25 PLP) layer used by
amateur radio. A local user or a remote user on an X.25 network could
exploit these flaws to execute arbitrary code as root. (CVE-2011-4913)

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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.

References

Related notices

  • USN-1241-1: linux-fsl-imx51, linux-image-2.6.31-611-imx51
  • USN-1236-1: linux-image-2.6.24-29-xen, linux-image-2.6.24-29-lpia, linux-image-2.6.24-29-rt, linux-image-2.6.24-29-hppa64, linux-image-2.6.24-29-lpiacompat, linux-image-2.6.24-29-server, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-powerpc64-smp, linux-image-2.6.24-29-powerpc-smp, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-powerpc, linux-image-2.6.24-29-openvz, linux-image-2.6.24-29-hppa32, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-itanium, linux, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-sparc64, linux-image-2.6.24-29-386
  • USN-1162-1: linux-image-2.6.32-217-dove, linux-mvl-dove
  • USN-1256-1: linux-image-2.6.38-12-generic, linux-image-2.6.38-12-virtual, linux-lts-backport-natty, linux-image-2.6.38-12-generic-pae, linux-image-2.6.38-12-server
  • USN-1159-1: linux-image-2.6.32-417-dove, linux-mvl-dove
  • USN-1202-1: linux-ti-omap4, linux-image-2.6.35-903-omap4
  • USN-1083-1: linux-image-2.6.35-25-virtual, linux-lts-backport-maverick, linux-image-2.6.35-25-generic-pae, linux-image-2.6.35-25-server, linux-image-2.6.35-25-generic
  • USN-1054-1: linux-image-2.6.35-25-virtual, linux-image-2.6.32-28-preempt, linux-image-2.6.32-28-386, linux-image-2.6.35-25-powerpc-smp, linux-image-2.6.32-28-sparc64, linux-image-2.6.32-312-ec2, linux-image-2.6.35-25-powerpc64-smp, linux-image-2.6.32-28-powerpc, linux-image-2.6.32-28-generic-pae, linux-image-2.6.32-28-server, linux-image-2.6.32-28-ia64, linux-image-2.6.32-28-powerpc-smp, linux-image-2.6.35-25-server, linux-ec2, linux-image-2.6.32-28-powerpc64-smp, linux-image-2.6.32-28-virtual, linux-image-2.6.32-28-sparc64-smp, linux-image-2.6.35-25-versatile, linux-image-2.6.32-28-generic, linux-image-2.6.35-25-omap, linux-image-2.6.35-25-powerpc, linux, linux-image-2.6.32-28-lpia, linux-image-2.6.32-28-versatile, linux-image-2.6.35-25-generic-pae, linux-image-2.6.35-25-generic
  • USN-1204-1: linux-image-2.6.31-610-imx51, linux-fsl-imx51
  • USN-1164-1: linux-fsl-imx51, linux-image-2.6.31-609-imx51
  • USN-1133-1: linux-image-2.6.24-29-xen, linux-image-2.6.24-29-lpia, linux-image-2.6.24-29-rt, linux-image-2.6.24-29-hppa64, linux-image-2.6.24-29-lpiacompat, linux-image-2.6.24-29-server, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-powerpc64-smp, linux-image-2.6.24-29-powerpc-smp, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-powerpc, linux-image-2.6.24-29-openvz, linux-image-2.6.24-29-hppa32, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-itanium, linux, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-sparc64, linux-image-2.6.24-29-386
  • USN-1111-1: linux-image-2.6.15-57-server, linux-image-2.6.15-57-amd64-xeon, linux-image-2.6.15-57-server-bigiron, linux-image-2.6.15-57-386, linux-image-2.6.15-57-itanium-smp, linux-image-2.6.15-57-amd64-k8, linux-image-2.6.15-57-powerpc-smp, linux-image-2.6.15-57-amd64-server, linux-image-2.6.15-57-amd64-generic, linux-image-2.6.15-57-686, linux-image-2.6.15-57-hppa32-smp, linux-image-2.6.15-57-k7, linux-image-2.6.15-57-hppa32, linux-image-2.6.15-57-hppa64-smp, linux-image-2.6.15-57-mckinley-smp, linux-image-2.6.15-57-itanium, linux-source-2.6.15, linux-image-2.6.15-57-powerpc64-smp, linux-image-2.6.15-57-sparc64-smp, linux-image-2.6.15-57-powerpc, linux-image-2.6.15-57-hppa64, linux-image-2.6.15-57-sparc64, linux-image-2.6.15-57-mckinley
  • USN-1081-1: linux-image-2.6.35-27-generic-pae, linux, linux-image-2.6.35-27-omap, linux-image-2.6.35-27-powerpc, linux-image-2.6.35-27-powerpc64-smp, linux-image-2.6.35-27-server, linux-image-2.6.35-27-powerpc-smp, linux-image-2.6.35-27-versatile, linux-image-2.6.35-27-generic, linux-image-2.6.35-27-virtual
  • USN-1187-1: linux-lts-backport-maverick, linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-generic-pae, linux-image-2.6.35-30-generic, linux-image-2.6.35-30-server
  • USN-1119-1: linux-ti-omap4, linux-image-2.6.35-903-omap4
  • USN-1160-1: linux, linux-image-2.6.35-30-versatile, linux-image-2.6.35-30-omap, linux-image-2.6.35-30-powerpc-smp, linux-image-2.6.35-30-powerpc, linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-generic-pae, linux-image-2.6.35-30-generic, linux-image-2.6.35-30-powerpc64-smp, linux-image-2.6.35-30-server
  • USN-1146-1: linux-image-2.6.24-29-xen, linux-image-2.6.24-29-lpia, linux-image-2.6.24-29-rt, linux-image-2.6.24-29-hppa64, linux-image-2.6.24-29-lpiacompat, linux-image-2.6.24-29-server, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-powerpc64-smp, linux-image-2.6.24-29-powerpc-smp, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-powerpc, linux-image-2.6.24-29-openvz, linux-image-2.6.24-29-hppa32, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-itanium, linux, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-sparc64, linux-image-2.6.24-29-386
  • USN-1093-1: linux-image-2.6.32-216-dove, linux-image-2.6.32-416-dove, linux-mvl-dove
  • USN-1167-1: linux, linux-image-2.6.38-10-powerpc-smp, linux-image-2.6.38-10-powerpc, linux-image-2.6.38-10-generic, linux-image-2.6.38-10-versatile, linux-image-2.6.38-10-powerpc64-smp, linux-image-2.6.38-10-generic-pae, linux-image-2.6.38-10-virtual, linux-image-2.6.38-10-server, linux-image-2.6.38-10-omap
  • USN-1212-1: linux-ti-omap4, linux-image-2.6.38-1209-omap4
  • USN-1186-1: linux-image-2.6.24-29-xen, linux-image-2.6.24-29-lpia, linux-image-2.6.24-29-rt, linux-image-2.6.24-29-hppa64, linux-image-2.6.24-29-lpiacompat, linux-image-2.6.24-29-server, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-powerpc64-smp, linux-image-2.6.24-29-powerpc-smp, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-powerpc, linux-image-2.6.24-29-openvz, linux-image-2.6.24-29-hppa32, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-itanium, linux, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-sparc64, linux-image-2.6.24-29-386
  • USN-1170-1: linux-image-2.6.24-29-xen, linux-image-2.6.24-29-lpia, linux-image-2.6.24-29-rt, linux-image-2.6.24-29-hppa64, linux-image-2.6.24-29-lpiacompat, linux-image-2.6.24-29-server, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-powerpc64-smp, linux-image-2.6.24-29-powerpc-smp, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-powerpc, linux-image-2.6.24-29-openvz, linux-image-2.6.24-29-hppa32, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-itanium, linux, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-sparc64, linux-image-2.6.24-29-386
  • USN-1189-1: linux-image-2.6.24-29-xen, linux-image-2.6.24-29-lpia, linux-image-2.6.24-29-rt, linux-image-2.6.24-29-hppa64, linux-image-2.6.24-29-lpiacompat, linux-image-2.6.24-29-server, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-powerpc64-smp, linux-image-2.6.24-29-powerpc-smp, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-powerpc, linux-image-2.6.24-29-openvz, linux-image-2.6.24-29-hppa32, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-itanium, linux, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-sparc64, linux-image-2.6.24-29-386
  • USN-1394-1: linux-ti-omap4, linux-image-2.6.35-903-omap4
  • USN-1390-1: linux-image-2.6.24-31-itanium, linux-image-2.6.24-31-hppa32, linux-image-2.6.24-31-server, linux-image-2.6.24-31-xen, linux-image-2.6.24-31-hppa64, linux-image-2.6.24-31-sparc64, linux-image-2.6.24-31-powerpc, linux-image-2.6.24-31-sparc64-smp, linux-image-2.6.24-31-lpia, linux-image-2.6.24-31-lpiacompat, linux-image-2.6.24-31-386, linux-image-2.6.24-31-powerpc64-smp, linux-image-2.6.24-31-rt, linux-image-2.6.24-31-generic, linux-image-2.6.24-31-virtual, linux-image-2.6.24-31-openvz, linux, linux-image-2.6.24-31-powerpc-smp, linux-image-2.6.24-31-mckinley
  • USN-1325-1: linux-ti-omap4, linux-image-2.6.35-903-omap4
  • USN-1323-1: linux-image-2.6.24-30-386, linux-image-2.6.24-30-hppa32, linux-image-2.6.24-30-sparc64-smp, linux-image-2.6.24-30-lpia, linux-image-2.6.24-30-server, linux-image-2.6.24-30-sparc64, linux-image-2.6.24-30-hppa64, linux-image-2.6.24-30-openvz, linux-image-2.6.24-30-lpiacompat, linux-image-2.6.24-30-rt, linux-image-2.6.24-30-virtual, linux-image-2.6.24-30-xen, linux-image-2.6.24-30-generic, linux-image-2.6.24-30-powerpc, linux, linux-image-2.6.24-30-itanium, linux-image-2.6.24-30-powerpc-smp, linux-image-2.6.24-30-mckinley, linux-image-2.6.24-30-powerpc64-smp

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