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USN-1212-1: Linux kernel (OMAP4) vulnerabilities

21 September 2011

Multiple kernel flaws have been fixed.

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Releases

Packages

Details

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)

It was discovered that the /proc filesystem did not correctly handle
permission changes when programs executed. A local attacker could hold open
files to examine details about programs running with higher privileges,
potentially increasing the chances of exploiting additional
vulnerabilities. (CVE-2011-1020)

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)

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)

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 the X.25 Rose network stack did not correctly
handle certain fields. If a system was running with Rose enabled, a remote
attacker could send specially crafted traffic to gain root privileges.
(CVE-2011-1493)

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)

Timo Warns discovered that the GUID partition parsing routines did not
correctly validate certain structures. 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-2011-1577)

Phil Oester discovered that the network bonding system did not correctly
handle large queues. On some systems, a remote attacker could send
specially crafted traffic to crash the system, leading to a denial of
service. (CVE-2011-1581)

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 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)

Vasiliy Kulikov and Dan Rosenberg discovered that ecryptfs did not
correctly check the origin of mount points. A local attacker could exploit
this to trick the system into unmounting arbitrary mount points, leading to
a denial of service. (CVE-2011-1833)

Vasiliy Kulikov discovered that taskstats listeners were not correctly
handled. A local attacker could expoit this to exhaust memory and CPU
resources, leading to a denial of service. (CVE-2011-2484)

It was discovered that Bluetooth l2cap and rfcomm did not correctly
initialize structures. A local attacker could exploit this to read portions
of the kernel stack, leading to a loss of privacy. (CVE-2011-2492)

Sami Liedes discovered that ext4 did not correctly handle missing root
inodes. A local attacker could trigger the mount of a specially crafted
filesystem to cause the system to crash, leading to a denial of service.
(CVE-2011-2493)

It was discovered that GFS2 did not correctly check block sizes. A local
attacker could exploit this to crash the system, leading to a denial of
service. (CVE-2011-2689)

Fernando Gont discovered that the IPv6 stack used predictable fragment
identification numbers. A remote attacker could exploit this to exhaust
network resources, leading to a denial of service. (CVE-2011-2699)

The performance counter subsystem did not correctly handle certain
counters. A local attacker could exploit this to crash the system, leading
to a denial of service. (CVE-2011-2918)

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)

A flaw was found in the Linux kernel's /proc//map* interface. A local,
unprivileged user could exploit this flaw to cause a denial of service.
(CVE-2011-3637)

It was discovered that some import kernel threads can be blocked by a user
level process. An unprivileged local user could exploit this flaw to cause
a denial of service. (CVE-2011-4621)

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)

Ben Hutchings discovered several flaws in the Linux Rose (X.25 PLP) layer.
A local user or a remote user on an X.25 network could exploit these flaws
to execute arbitrary code as root. (CVE-2011-4914)

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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.

References

Related notices

  • USN-1164-1: linux-image-2.6.31-609-imx51, linux-fsl-imx51
  • USN-1202-1: linux-image-2.6.35-903-omap4, linux-ti-omap4
  • USN-1160-1: linux, linux-image-2.6.35-30-server, linux-image-2.6.35-30-generic, linux-image-2.6.35-30-powerpc64-smp, linux-image-2.6.35-30-versatile, linux-image-2.6.35-30-powerpc, linux-image-2.6.35-30-omap, linux-image-2.6.35-30-generic-pae, linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-powerpc-smp
  • USN-1141-1: linux, linux-image-2.6.32-32-powerpc, linux-image-2.6.32-32-virtual, linux-image-2.6.32-32-powerpc64-smp, linux-image-2.6.32-32-server, linux-image-2.6.32-32-versatile, linux-image-2.6.32-32-386, linux-image-2.6.32-32-powerpc-smp, linux-image-2.6.32-32-lpia, linux-image-2.6.32-32-ia64, linux-ec2, linux-image-2.6.32-316-ec2, linux-image-2.6.32-32-generic, linux-image-2.6.32-32-preempt, linux-image-2.6.32-32-sparc64, linux-image-2.6.32-32-sparc64-smp, linux-image-2.6.32-32-generic-pae
  • USN-1162-1: linux-image-2.6.32-217-dove, linux-mvl-dove
  • USN-1146-1: linux, linux-image-2.6.24-29-rt, linux-image-2.6.24-29-itanium, linux-image-2.6.24-29-openvz, linux-image-2.6.24-29-lpiacompat, linux-image-2.6.24-29-server, linux-image-2.6.24-29-powerpc-smp, linux-image-2.6.24-29-hppa64, linux-image-2.6.24-29-xen, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-lpia, linux-image-2.6.24-29-hppa32, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-sparc64, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-powerpc64-smp, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-powerpc, linux-image-2.6.24-29-386
  • USN-1167-1: linux, linux-image-2.6.38-10-omap, linux-image-2.6.38-10-generic, linux-image-2.6.38-10-virtual, linux-image-2.6.38-10-server, linux-image-2.6.38-10-generic-pae, linux-image-2.6.38-10-powerpc, linux-image-2.6.38-10-versatile, linux-image-2.6.38-10-powerpc-smp, linux-image-2.6.38-10-powerpc64-smp
  • USN-1187-1: linux-image-2.6.35-30-server, linux-image-2.6.35-30-generic, linux-lts-backport-maverick, linux-image-2.6.35-30-generic-pae, linux-image-2.6.35-30-virtual
  • USN-1159-1: linux-image-2.6.32-417-dove, linux-mvl-dove
  • USN-1168-1: linux, linux-image-2.6.32-33-386, linux-image-2.6.32-33-generic, linux-image-2.6.32-33-powerpc-smp, linux-image-2.6.32-33-preempt, linux-image-2.6.32-33-server, linux-image-2.6.32-33-ia64, linux-image-2.6.32-33-powerpc, linux-image-2.6.32-33-sparc64, linux-image-2.6.32-33-versatile, linux-image-2.6.32-33-powerpc64-smp, linux-image-2.6.32-33-sparc64-smp, linux-image-2.6.32-33-lpia, linux-image-2.6.32-33-generic-pae, linux-image-2.6.32-33-virtual
  • USN-1111-1: linux-image-2.6.15-57-sparc64-smp, linux-image-2.6.15-57-hppa64-smp, linux-image-2.6.15-57-hppa32-smp, linux-image-2.6.15-57-server, linux-image-2.6.15-57-k7, linux-image-2.6.15-57-amd64-generic, linux-image-2.6.15-57-hppa64, linux-image-2.6.15-57-powerpc-smp, linux-image-2.6.15-57-server-bigiron, linux-image-2.6.15-57-itanium-smp, linux-source-2.6.15, linux-image-2.6.15-57-hppa32, linux-image-2.6.15-57-amd64-xeon, linux-image-2.6.15-57-686, linux-image-2.6.15-57-amd64-server, linux-image-2.6.15-57-amd64-k8, linux-image-2.6.15-57-mckinley-smp, linux-image-2.6.15-57-386, linux-image-2.6.15-57-powerpc64-smp, linux-image-2.6.15-57-itanium, linux-image-2.6.15-57-sparc64, linux-image-2.6.15-57-powerpc, linux-image-2.6.15-57-mckinley
  • USN-1161-1: linux-ec2, linux-image-2.6.32-317-ec2
  • USN-1205-1: linux-image-2.6.35-30-server, linux-image-2.6.35-30-generic, linux-lts-backport-maverick, linux-image-2.6.35-30-generic-pae, linux-image-2.6.35-30-virtual
  • USN-1189-1: linux, linux-image-2.6.24-29-rt, linux-image-2.6.24-29-itanium, linux-image-2.6.24-29-openvz, linux-image-2.6.24-29-lpiacompat, linux-image-2.6.24-29-server, linux-image-2.6.24-29-powerpc-smp, linux-image-2.6.24-29-hppa64, linux-image-2.6.24-29-xen, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-lpia, linux-image-2.6.24-29-hppa32, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-sparc64, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-powerpc64-smp, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-powerpc, linux-image-2.6.24-29-386
  • USN-1211-1: linux, linux-image-2.6.38-11-powerpc, linux-image-2.6.38-11-generic, linux-image-2.6.38-11-virtual, linux-image-2.6.38-11-versatile, linux-image-2.6.38-11-powerpc-smp, linux-image-2.6.38-11-powerpc64-smp, linux-image-2.6.38-11-omap, linux-image-2.6.38-11-server, linux-image-2.6.38-11-generic-pae
  • USN-1203-1: linux-image-2.6.32-218-dove, linux-mvl-dove
  • USN-1218-1: linux, linux-image-2.6.32-34-sparc64, linux-image-2.6.32-34-generic, linux-image-2.6.32-34-generic-pae, linux-image-2.6.32-34-virtual, linux-image-2.6.32-34-powerpc-smp, linux-image-2.6.32-34-server, linux-image-2.6.32-34-preempt, linux-image-2.6.32-34-powerpc64-smp, linux-image-2.6.32-34-powerpc, linux-image-2.6.32-34-386, linux-image-2.6.32-34-lpia, linux-image-2.6.32-34-versatile, linux-image-2.6.32-34-ia64, linux-image-2.6.32-34-sparc64-smp
  • USN-1204-1: linux-image-2.6.31-610-imx51, linux-fsl-imx51
  • USN-1208-1: linux-image-2.6.32-418-dove, linux-mvl-dove
  • USN-1256-1: linux-image-2.6.38-12-generic-pae, linux-image-2.6.38-12-virtual, linux-image-2.6.38-12-server, linux-image-2.6.38-12-generic, linux-lts-backport-natty
  • USN-1201-1: linux, linux-image-2.6.35-30-server, linux-image-2.6.35-30-generic, linux-image-2.6.35-30-powerpc64-smp, linux-image-2.6.35-30-versatile, linux-image-2.6.35-30-powerpc, linux-image-2.6.35-30-omap, linux-image-2.6.35-30-generic-pae, linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-powerpc-smp
  • USN-1216-1: linux-ec2, linux-image-2.6.32-318-ec2
  • USN-1186-1: linux, linux-image-2.6.24-29-rt, linux-image-2.6.24-29-itanium, linux-image-2.6.24-29-openvz, linux-image-2.6.24-29-lpiacompat, linux-image-2.6.24-29-server, linux-image-2.6.24-29-powerpc-smp, linux-image-2.6.24-29-hppa64, linux-image-2.6.24-29-xen, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-lpia, linux-image-2.6.24-29-hppa32, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-sparc64, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-powerpc64-smp, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-powerpc, linux-image-2.6.24-29-386
  • USN-1394-1: linux-image-2.6.35-903-omap4, linux-ti-omap4
  • USN-1390-1: linux, linux-image-2.6.24-31-xen, linux-image-2.6.24-31-sparc64, linux-image-2.6.24-31-mckinley, linux-image-2.6.24-31-itanium, linux-image-2.6.24-31-powerpc, linux-image-2.6.24-31-openvz, linux-image-2.6.24-31-server, linux-image-2.6.24-31-powerpc64-smp, linux-image-2.6.24-31-386, linux-image-2.6.24-31-lpiacompat, linux-image-2.6.24-31-hppa64, linux-image-2.6.24-31-hppa32, linux-image-2.6.24-31-rt, linux-image-2.6.24-31-sparc64-smp, linux-image-2.6.24-31-powerpc-smp, linux-image-2.6.24-31-virtual, linux-image-2.6.24-31-generic, linux-image-2.6.24-31-lpia
  • USN-1243-1: linux, linux-image-2.6.35-30-server, linux-image-2.6.35-30-generic, linux-image-2.6.35-30-powerpc64-smp, linux-image-2.6.35-30-versatile, linux-image-2.6.35-30-powerpc, linux-image-2.6.35-30-omap, linux-image-2.6.35-30-generic-pae, linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-powerpc-smp
  • USN-1242-1: linux-image-2.6.35-30-server, linux-image-2.6.35-30-generic, linux-lts-backport-maverick, linux-image-2.6.35-30-generic-pae, linux-image-2.6.35-30-virtual
  • USN-1183-1: linux, linux-image-2.6.35-30-server, linux-image-2.6.35-30-generic, linux-image-2.6.35-30-powerpc64-smp, linux-image-2.6.35-30-versatile, linux-image-2.6.35-30-powerpc, linux-image-2.6.35-30-omap, linux-image-2.6.35-30-generic-pae, linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-powerpc-smp
  • USN-1170-1: linux, linux-image-2.6.24-29-rt, linux-image-2.6.24-29-itanium, linux-image-2.6.24-29-openvz, linux-image-2.6.24-29-lpiacompat, linux-image-2.6.24-29-server, linux-image-2.6.24-29-powerpc-smp, linux-image-2.6.24-29-hppa64, linux-image-2.6.24-29-xen, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-lpia, linux-image-2.6.24-29-hppa32, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-sparc64, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-powerpc64-smp, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-powerpc, linux-image-2.6.24-29-386
  • USN-1193-1: linux, linux-image-2.6.38-11-powerpc, linux-image-2.6.38-11-generic, linux-image-2.6.38-11-virtual, linux-image-2.6.38-11-versatile, linux-image-2.6.38-11-powerpc-smp, linux-image-2.6.38-11-powerpc64-smp, linux-image-2.6.38-11-omap, linux-image-2.6.38-11-server, linux-image-2.6.38-11-generic-pae
  • USN-1219-1: linux-image-2.6.35-30-server, linux-image-2.6.35-30-generic, linux-lts-backport-maverick, linux-image-2.6.35-30-generic-pae, linux-image-2.6.35-30-virtual
  • USN-1253-1: linux, linux-image-2.6.32-35-lpia, linux-image-2.6.32-35-generic-pae, linux-image-2.6.32-35-virtual, linux-image-2.6.32-35-ia64, linux-image-2.6.32-35-powerpc64-smp, linux-image-2.6.32-35-powerpc-smp, linux-image-2.6.32-35-versatile, linux-image-2.6.32-35-generic, linux-image-2.6.32-35-powerpc, linux-image-2.6.32-35-386, linux-image-2.6.32-35-preempt, linux-image-2.6.32-35-sparc64, linux-image-2.6.32-35-sparc64-smp, linux-image-2.6.32-35-server
  • USN-1239-1: linux-ec2, linux-image-2.6.32-319-ec2
  • USN-1188-1: ecryptfs-utils
  • USN-1227-1: linux, linux-image-2.6.35-30-server, linux-image-2.6.35-30-generic, linux-image-2.6.35-30-powerpc64-smp, linux-image-2.6.35-30-versatile, linux-image-2.6.35-30-powerpc, linux-image-2.6.35-30-omap, linux-image-2.6.35-30-generic-pae, linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-powerpc-smp
  • USN-1240-1: linux-image-2.6.32-219-dove, linux-mvl-dove
  • USN-1245-1: linux-mvl-dove, linux-image-2.6.32-419-dove
  • USN-1225-1: linux, linux-image-2.6.24-29-rt, linux-image-2.6.24-29-itanium, linux-image-2.6.24-29-openvz, linux-image-2.6.24-29-lpiacompat, linux-image-2.6.24-29-server, linux-image-2.6.24-29-powerpc-smp, linux-image-2.6.24-29-hppa64, linux-image-2.6.24-29-xen, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-lpia, linux-image-2.6.24-29-hppa32, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-sparc64, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-powerpc64-smp, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-powerpc, linux-image-2.6.24-29-386
  • USN-1325-1: linux-image-2.6.35-903-omap4, linux-ti-omap4
  • USN-1323-1: linux, linux-image-2.6.24-30-server, linux-image-2.6.24-30-virtual, linux-image-2.6.24-30-generic, linux-image-2.6.24-30-386, linux-image-2.6.24-30-powerpc-smp, linux-image-2.6.24-30-powerpc64-smp, linux-image-2.6.24-30-rt, linux-image-2.6.24-30-powerpc, linux-image-2.6.24-30-sparc64, linux-image-2.6.24-30-lpia, linux-image-2.6.24-30-mckinley, linux-image-2.6.24-30-hppa64, linux-image-2.6.24-30-sparc64-smp, linux-image-2.6.24-30-xen, linux-image-2.6.24-30-hppa32, linux-image-2.6.24-30-itanium, linux-image-2.6.24-30-lpiacompat, linux-image-2.6.24-30-openvz
  • USN-1081-1: linux, linux-image-2.6.35-27-server, linux-image-2.6.35-27-versatile, linux-image-2.6.35-27-powerpc, linux-image-2.6.35-27-powerpc-smp, linux-image-2.6.35-27-omap, linux-image-2.6.35-27-virtual, linux-image-2.6.35-27-generic, linux-image-2.6.35-27-powerpc64-smp, linux-image-2.6.35-27-generic-pae

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