USN-1167-1: Linux kernel vulnerabilities

13 July 2011

Multiple kernel flaws have been fixed.

Releases

Packages

  • linux - Linux kernel

Details

Aristide Fattori and Roberto Paleari reported a flaw in the Linux kernel's
handling of IPv4 icmp packets. A remote user could exploit this to cause a
denial of service. (CVE-2011-1927)

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)

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)

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)

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)

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)

It was discovered that the security fix for CVE-2010-4250 introduced a
regression. A remote attacker could exploit this to crash the system,
leading to a denial of service. (CVE-2011-1479)

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)

Ben Greear discovered that CIFS did not correctly handle direct I/O. A
local attacker with access to a CIFS partition could exploit this to crash
the system, leading to a denial of service. (CVE-2011-1771)

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)

It was discovered that an mmap() call with the MAP_PRIVATE flag on
"/dev/zero" was incorrectly handled. A local attacker could exploit this to
crash the system, leading to a denial of service. (CVE-2011-2479)

Robert Swiecki discovered that mapping extensions were incorrectly handled.
A local attacker could exploit this to crash the system, leading to a
denial of service. (CVE-2011-2496)

The linux kernel did not properly account for PTE pages when deciding which
task to kill in out of memory conditions. A local, unprivileged could
exploit this flaw to cause a denial of service. (CVE-2011-2498)

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)

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)

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)

Update instructions

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

Ubuntu 11.04

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-1379-1: linux-image-2.6.35-32-server, linux-image-2.6.35-32-versatile, linux-image-2.6.35-32-generic-pae, linux-image-2.6.35-32-powerpc64-smp, linux, linux-image-2.6.35-32-powerpc, linux-image-2.6.35-32-generic, linux-image-2.6.35-32-virtual, linux-image-2.6.35-32-omap, linux-image-2.6.35-32-powerpc-smp
  • USN-1244-1: linux-image-2.6.35-903-omap4, linux-ti-omap4
  • USN-1383-1: linux-ti-omap4, linux-image-2.6.38-1209-omap4
  • USN-1111-1: linux-image-2.6.15-57-k7, linux-image-2.6.15-57-mckinley, linux-image-2.6.15-57-powerpc-smp, linux-image-2.6.15-57-server, linux-image-2.6.15-57-mckinley-smp, linux-image-2.6.15-57-hppa32, linux-image-2.6.15-57-hppa64-smp, linux-image-2.6.15-57-powerpc64-smp, linux-image-2.6.15-57-itanium, linux-image-2.6.15-57-sparc64-smp, linux-source-2.6.15, linux-image-2.6.15-57-686, linux-image-2.6.15-57-386, linux-image-2.6.15-57-powerpc, linux-image-2.6.15-57-hppa64, linux-image-2.6.15-57-itanium-smp, linux-image-2.6.15-57-server-bigiron, linux-image-2.6.15-57-hppa32-smp, linux-image-2.6.15-57-amd64-server, linux-image-2.6.15-57-amd64-generic, linux-image-2.6.15-57-amd64-k8, linux-image-2.6.15-57-sparc64, linux-image-2.6.15-57-amd64-xeon
  • USN-1341-1: linux-image-2.6.35-32-server, linux-image-2.6.35-32-versatile, linux-image-2.6.35-32-generic-pae, linux-image-2.6.35-32-powerpc64-smp, linux, linux-image-2.6.35-32-powerpc, linux-image-2.6.35-32-generic, linux-image-2.6.35-32-virtual, linux-image-2.6.35-32-omap, linux-image-2.6.35-32-powerpc-smp
  • USN-1269-1: linux-image-2.6.32-340-ec2, linux-ec2
  • USN-1225-1: linux-image-2.6.24-29-server, linux-image-2.6.24-29-hppa64, linux-image-2.6.24-29-386, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-lpiacompat, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-itanium, linux-image-2.6.24-29-lpia, linux-image-2.6.24-29-hppa32, linux-image-2.6.24-29-openvz, linux, linux-image-2.6.24-29-powerpc, linux-image-2.6.24-29-powerpc64-smp, linux-image-2.6.24-29-rt, linux-image-2.6.24-29-sparc64, linux-image-2.6.24-29-xen, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-powerpc-smp
  • USN-1168-1: linux-image-2.6.32-33-powerpc64-smp, linux-image-2.6.32-33-preempt, linux-image-2.6.32-33-versatile, linux-image-2.6.32-33-ia64, linux-image-2.6.32-33-lpia, linux-image-2.6.32-33-server, linux, linux-image-2.6.32-33-powerpc-smp, linux-image-2.6.32-33-virtual, linux-image-2.6.32-33-sparc64-smp, linux-image-2.6.32-33-powerpc, linux-image-2.6.32-33-sparc64, linux-image-2.6.32-33-386, linux-image-2.6.32-33-generic-pae, linux-image-2.6.32-33-generic
  • USN-1228-1: linux-ti-omap4, linux-image-2.6.38-1209-omap4
  • USN-1268-1: linux-image-2.6.24-30-hppa32, linux-image-2.6.24-30-server, linux-image-2.6.24-30-sparc64, linux-image-2.6.24-30-sparc64-smp, linux-image-2.6.24-30-virtual, linux-image-2.6.24-30-hppa64, linux, linux-image-2.6.24-30-386, linux-image-2.6.24-30-rt, linux-image-2.6.24-30-xen, linux-image-2.6.24-30-openvz, linux-image-2.6.24-30-itanium, linux-image-2.6.24-30-generic, linux-image-2.6.24-30-mckinley, linux-image-2.6.24-30-lpia, linux-image-2.6.24-30-powerpc-smp, linux-image-2.6.24-30-powerpc, linux-image-2.6.24-30-powerpc64-smp, linux-image-2.6.24-30-lpiacompat
  • USN-1286-1: linux-image-2.6.32-36-386, linux-image-2.6.32-36-lpia, linux-image-2.6.32-36-virtual, linux-image-2.6.32-36-generic, linux-image-2.6.32-36-powerpc-smp, linux-image-2.6.32-36-generic-pae, linux, linux-image-2.6.32-36-versatile, linux-image-2.6.32-36-powerpc64-smp, linux-image-2.6.32-36-server, linux-image-2.6.32-36-preempt, linux-image-2.6.32-36-sparc64-smp, linux-image-2.6.32-36-powerpc, linux-image-2.6.32-36-ia64, linux-image-2.6.32-36-sparc64
  • USN-1280-1: linux-image-2.6.35-903-omap4, linux-ti-omap4
  • USN-1272-1: linux-image-2.6.35-31-powerpc64-smp, linux-image-2.6.35-31-generic-pae, linux, linux-image-2.6.35-31-generic, linux-image-2.6.35-31-omap, linux-image-2.6.35-31-server, linux-image-2.6.35-31-versatile, linux-image-2.6.35-31-virtual, linux-image-2.6.35-31-powerpc, linux-image-2.6.35-31-powerpc-smp
  • USN-1325-1: linux-image-2.6.35-903-omap4, linux-ti-omap4
  • USN-1141-1: linux-image-2.6.32-32-powerpc, linux-image-2.6.32-32-powerpc64-smp, linux, linux-image-2.6.32-32-preempt, linux-image-2.6.32-32-generic, linux-ec2, linux-image-2.6.32-316-ec2, linux-image-2.6.32-32-386, linux-image-2.6.32-32-lpia, linux-image-2.6.32-32-sparc64-smp, linux-image-2.6.32-32-versatile, linux-image-2.6.32-32-powerpc-smp, linux-image-2.6.32-32-generic-pae, linux-image-2.6.32-32-ia64, linux-image-2.6.32-32-sparc64, linux-image-2.6.32-32-virtual, linux-image-2.6.32-32-server
  • USN-1242-1: linux-image-2.6.35-30-generic-pae, linux-lts-backport-maverick, linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-server, linux-image-2.6.35-30-generic
  • USN-1281-1: linux-ti-omap4, linux-image-2.6.38-1209-omap4
  • USN-1386-1: linux-image-2.6.38-13-generic, linux-lts-backport-natty, linux-image-2.6.38-13-server, linux-image-2.6.38-13-generic-pae, linux-image-2.6.38-13-virtual
  • USN-1187-1: linux-image-2.6.35-30-generic-pae, linux-lts-backport-maverick, linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-server, linux-image-2.6.35-30-generic
  • USN-1332-1: linux-image-2.6.35-32-server, linux-image-2.6.35-32-generic-pae, linux-lts-backport-maverick, linux-image-2.6.35-32-generic, linux-image-2.6.35-32-virtual
  • USN-1189-1: linux-image-2.6.24-29-server, linux-image-2.6.24-29-hppa64, linux-image-2.6.24-29-386, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-lpiacompat, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-itanium, linux-image-2.6.24-29-lpia, linux-image-2.6.24-29-hppa32, linux-image-2.6.24-29-openvz, linux, linux-image-2.6.24-29-powerpc, linux-image-2.6.24-29-powerpc64-smp, linux-image-2.6.24-29-rt, linux-image-2.6.24-29-sparc64, linux-image-2.6.24-29-xen, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-powerpc-smp
  • USN-1227-1: linux-image-2.6.35-30-omap, linux-image-2.6.35-30-powerpc, linux, linux-image-2.6.35-30-server, linux-image-2.6.35-30-generic-pae, linux-image-2.6.35-30-powerpc64-smp, linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-powerpc-smp, linux-image-2.6.35-30-versatile, linux-image-2.6.35-30-generic
  • USN-1323-1: linux-image-2.6.24-30-hppa32, linux-image-2.6.24-30-server, linux-image-2.6.24-30-sparc64, linux-image-2.6.24-30-sparc64-smp, linux-image-2.6.24-30-virtual, linux-image-2.6.24-30-hppa64, linux, linux-image-2.6.24-30-386, linux-image-2.6.24-30-rt, linux-image-2.6.24-30-xen, linux-image-2.6.24-30-openvz, linux-image-2.6.24-30-itanium, linux-image-2.6.24-30-generic, linux-image-2.6.24-30-mckinley, linux-image-2.6.24-30-lpia, linux-image-2.6.24-30-powerpc-smp, linux-image-2.6.24-30-powerpc, linux-image-2.6.24-30-powerpc64-smp, linux-image-2.6.24-30-lpiacompat
  • USN-1170-1: linux-image-2.6.24-29-server, linux-image-2.6.24-29-hppa64, linux-image-2.6.24-29-386, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-lpiacompat, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-itanium, linux-image-2.6.24-29-lpia, linux-image-2.6.24-29-hppa32, linux-image-2.6.24-29-openvz, linux, linux-image-2.6.24-29-powerpc, linux-image-2.6.24-29-powerpc64-smp, linux-image-2.6.24-29-rt, linux-image-2.6.24-29-sparc64, linux-image-2.6.24-29-xen, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-powerpc-smp
  • USN-1202-1: linux-image-2.6.35-903-omap4, linux-ti-omap4
  • USN-1212-1: linux-ti-omap4, linux-image-2.6.38-1209-omap4
  • USN-1146-1: linux-image-2.6.24-29-server, linux-image-2.6.24-29-hppa64, linux-image-2.6.24-29-386, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-lpiacompat, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-itanium, linux-image-2.6.24-29-lpia, linux-image-2.6.24-29-hppa32, linux-image-2.6.24-29-openvz, linux, linux-image-2.6.24-29-powerpc, linux-image-2.6.24-29-powerpc64-smp, linux-image-2.6.24-29-rt, linux-image-2.6.24-29-sparc64, linux-image-2.6.24-29-xen, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-powerpc-smp
  • USN-1164-1: linux-fsl-imx51, linux-image-2.6.31-609-imx51
  • USN-1243-1: linux-image-2.6.35-30-omap, linux-image-2.6.35-30-powerpc, linux, linux-image-2.6.35-30-server, linux-image-2.6.35-30-generic-pae, linux-image-2.6.35-30-powerpc64-smp, linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-powerpc-smp, linux-image-2.6.35-30-versatile, linux-image-2.6.35-30-generic
  • USN-1241-1: linux-fsl-imx51, linux-image-2.6.31-611-imx51
  • USN-1390-1: linux-image-2.6.24-31-386, linux-image-2.6.24-31-lpiacompat, linux-image-2.6.24-31-itanium, linux-image-2.6.24-31-virtual, linux-image-2.6.24-31-generic, linux-image-2.6.24-31-hppa64, linux-image-2.6.24-31-sparc64-smp, linux-image-2.6.24-31-sparc64, linux-image-2.6.24-31-powerpc-smp, linux-image-2.6.24-31-hppa32, linux, linux-image-2.6.24-31-lpia, linux-image-2.6.24-31-server, linux-image-2.6.24-31-powerpc, linux-image-2.6.24-31-rt, linux-image-2.6.24-31-openvz, linux-image-2.6.24-31-powerpc64-smp, linux-image-2.6.24-31-mckinley, linux-image-2.6.24-31-xen
  • USN-1387-1: linux-image-2.6.35-32-server, linux-image-2.6.35-32-generic-pae, linux-lts-backport-maverick, linux-image-2.6.35-32-generic, linux-image-2.6.35-32-virtual
  • USN-1394-1: linux-image-2.6.35-903-omap4, linux-ti-omap4
  • USN-1274-1: linux-image-2.6.32-420-dove, linux-mvl-dove
  • USN-1093-1: linux-image-2.6.32-216-dove, linux-mvl-dove, linux-image-2.6.32-416-dove
  • USN-1201-1: linux-image-2.6.35-30-omap, linux-image-2.6.35-30-powerpc, linux, linux-image-2.6.35-30-server, linux-image-2.6.35-30-generic-pae, linux-image-2.6.35-30-powerpc64-smp, linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-powerpc-smp, linux-image-2.6.35-30-versatile, linux-image-2.6.35-30-generic
  • USN-1205-1: linux-image-2.6.35-30-generic-pae, linux-lts-backport-maverick, linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-server, linux-image-2.6.35-30-generic
  • USN-1278-1: linux-image-2.6.35-31-generic-pae, linux-image-2.6.35-31-generic, linux-image-2.6.35-31-server, linux-lts-backport-maverick, linux-image-2.6.35-31-virtual
  • USN-1220-1: linux-image-2.6.35-903-omap4, linux-ti-omap4
  • USN-1159-1: linux-mvl-dove, linux-image-2.6.32-417-dove
  • USN-1183-1: linux-image-2.6.35-30-omap, linux-image-2.6.35-30-powerpc, linux, linux-image-2.6.35-30-server, linux-image-2.6.35-30-generic-pae, linux-image-2.6.35-30-powerpc64-smp, linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-powerpc-smp, linux-image-2.6.35-30-versatile, linux-image-2.6.35-30-generic
  • USN-1256-1: linux-image-2.6.38-12-generic-pae, linux-lts-backport-natty, linux-image-2.6.38-12-virtual, linux-image-2.6.38-12-server, linux-image-2.6.38-12-generic
  • USN-1161-1: linux-image-2.6.32-317-ec2, linux-ec2
  • USN-1204-1: linux-fsl-imx51, linux-image-2.6.31-610-imx51
  • USN-1162-1: linux-image-2.6.32-217-dove, linux-mvl-dove
  • USN-1160-1: linux-image-2.6.35-30-omap, linux-image-2.6.35-30-powerpc, linux, linux-image-2.6.35-30-server, linux-image-2.6.35-30-generic-pae, linux-image-2.6.35-30-powerpc64-smp, linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-powerpc-smp, linux-image-2.6.35-30-versatile, linux-image-2.6.35-30-generic
  • USN-1219-1: linux-image-2.6.35-30-generic-pae, linux-lts-backport-maverick, linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-server, linux-image-2.6.35-30-generic
  • USN-1186-1: linux-image-2.6.24-29-server, linux-image-2.6.24-29-hppa64, linux-image-2.6.24-29-386, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-lpiacompat, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-itanium, linux-image-2.6.24-29-lpia, linux-image-2.6.24-29-hppa32, linux-image-2.6.24-29-openvz, linux, linux-image-2.6.24-29-powerpc, linux-image-2.6.24-29-powerpc64-smp, linux-image-2.6.24-29-rt, linux-image-2.6.24-29-sparc64, linux-image-2.6.24-29-xen, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-powerpc-smp