USN-1228-1: Linux kernel (OMAP4) vulnerabilities

12 October 2011

Several security issues were fixed in the kernel.

Releases

Packages

  • linux-ti-omap4 - Linux kernel for OMAP4

Details

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)

Dan Rosenberg discovered that the IPv4 diagnostic routines did not
correctly validate certain requests. A local attacker could exploit this to
consume CPU resources, leading to a denial of service. (CVE-2011-2213)

Dan Rosenberg discovered that the Bluetooth stack incorrectly handled
certain L2CAP requests. If a system was using Bluetooth, a remote attacker
could send specially crafted traffic to crash the system or gain root
privileges. (CVE-2011-2497)

It was discovered that the EXT4 filesystem contained multiple off-by-one
flaws. A local attacker could exploit this to crash the system, leading to
a denial of service. (CVE-2011-2695)

Mauro Carvalho Chehab discovered that the si4713 radio driver did not
correctly check the length of memory copies. If this hardware was
available, a local attacker could exploit this to crash the system or gain
root privileges. (CVE-2011-2700)

Herbert Xu discovered that certain fields were incorrectly handled when
Generic Receive Offload (CVE-2011-2723)

Time Warns discovered that long symlinks were incorrectly handled on Be
filesystems. A local attacker could exploit this with a malformed Be
filesystem and crash the system, leading to a denial of service.
(CVE-2011-2928)

Dan Kaminsky discovered that the kernel incorrectly handled random sequence
number generation. An attacker could use this flaw to possibly predict
sequence numbers and inject packets. (CVE-2011-3188)

Darren Lavender discovered that the CIFS client incorrectly handled certain
large values. A remote attacker with a malicious server could exploit this
to crash the system or possibly execute arbitrary code as the root user.
(CVE-2011-3191)

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.

Related notices

  • USN-1243-1: linux-image-2.6.35-30-powerpc64-smp, linux-image-2.6.35-30-generic, linux, linux-image-2.6.35-30-powerpc-smp, linux-image-2.6.35-30-versatile, linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-powerpc, linux-image-2.6.35-30-server, linux-image-2.6.35-30-omap, linux-image-2.6.35-30-generic-pae
  • USN-1241-1: linux-image-2.6.31-611-imx51, linux-fsl-imx51
  • USN-1246-1: linux-image-2.6.38-12-server, linux-image-2.6.38-12-powerpc64-smp, linux-image-2.6.38-12-powerpc, linux-image-2.6.38-12-versatile, linux-image-2.6.38-12-virtual, linux-image-2.6.38-12-generic-pae, linux-image-2.6.38-12-generic, linux-image-2.6.38-12-omap, linux-image-2.6.38-12-powerpc-smp, linux
  • USN-1244-1: linux-ti-omap4, linux-image-2.6.35-903-omap4
  • USN-1225-1: 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-lpiacompat, linux-image-2.6.24-29-powerpc, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-openvz, linux-image-2.6.24-29-itanium, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-server, linux-image-2.6.24-29-hppa64, linux-image-2.6.24-29-xen, linux-image-2.6.24-29-sparc64, linux, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-386, linux-image-2.6.24-29-powerpc-smp, linux-image-2.6.24-29-lpia
  • USN-1168-1: linux-image-2.6.32-33-sparc64-smp, linux-image-2.6.32-33-powerpc, linux-image-2.6.32-33-server, linux-image-2.6.32-33-preempt, linux-image-2.6.32-33-lpia, linux, linux-image-2.6.32-33-powerpc-smp, linux-image-2.6.32-33-versatile, linux-image-2.6.32-33-ia64, linux-image-2.6.32-33-sparc64, linux-image-2.6.32-33-virtual, linux-image-2.6.32-33-386, linux-image-2.6.32-33-powerpc64-smp, linux-image-2.6.32-33-generic-pae, linux-image-2.6.32-33-generic
  • USN-1240-1: linux-mvl-dove, linux-image-2.6.32-219-dove
  • USN-1245-1: linux-mvl-dove, linux-image-2.6.32-419-dove
  • USN-1167-1: linux-image-2.6.38-10-versatile, linux-image-2.6.38-10-powerpc, linux-image-2.6.38-10-virtual, linux-image-2.6.38-10-omap, linux-image-2.6.38-10-powerpc-smp, linux-image-2.6.38-10-generic, linux-image-2.6.38-10-powerpc64-smp, linux, linux-image-2.6.38-10-generic-pae, linux-image-2.6.38-10-server
  • USN-1220-1: linux-ti-omap4, linux-image-2.6.35-903-omap4
  • USN-1208-1: linux-image-2.6.32-418-dove, linux-mvl-dove
  • USN-1216-1: linux-image-2.6.32-318-ec2, linux-ec2
  • USN-1159-1: linux-mvl-dove, linux-image-2.6.32-417-dove
  • USN-1242-1: linux-image-2.6.35-30-generic, 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-pae
  • USN-1218-1: linux-image-2.6.32-34-powerpc64-smp, linux-image-2.6.32-34-powerpc-smp, linux-image-2.6.32-34-server, linux-image-2.6.32-34-versatile, linux-image-2.6.32-34-preempt, linux-image-2.6.32-34-sparc64, linux-image-2.6.32-34-386, linux-image-2.6.32-34-lpia, linux-image-2.6.32-34-powerpc, linux-image-2.6.32-34-virtual, linux-image-2.6.32-34-generic-pae, linux-image-2.6.32-34-sparc64-smp, linux, linux-image-2.6.32-34-generic, linux-image-2.6.32-34-ia64
  • USN-1253-1: linux-image-2.6.32-35-lpia, linux-image-2.6.32-35-386, linux-image-2.6.32-35-generic, linux-image-2.6.32-35-preempt, linux-image-2.6.32-35-sparc64-smp, linux-image-2.6.32-35-virtual, linux-image-2.6.32-35-versatile, linux-image-2.6.32-35-powerpc, linux-image-2.6.32-35-powerpc-smp, linux-image-2.6.32-35-ia64, linux-image-2.6.32-35-sparc64, linux-image-2.6.32-35-generic-pae, linux-image-2.6.32-35-server, linux-image-2.6.32-35-powerpc64-smp, linux
  • USN-1256-1: linux-image-2.6.38-12-server, linux-image-2.6.38-12-virtual, linux-image-2.6.38-12-generic-pae, linux-image-2.6.38-12-generic, linux-lts-backport-natty
  • USN-1236-1: 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-lpiacompat, linux-image-2.6.24-29-powerpc, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-openvz, linux-image-2.6.24-29-itanium, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-server, linux-image-2.6.24-29-hppa64, linux-image-2.6.24-29-xen, linux-image-2.6.24-29-sparc64, linux, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-386, linux-image-2.6.24-29-powerpc-smp, linux-image-2.6.24-29-lpia
  • USN-1161-1: linux-image-2.6.32-317-ec2, linux-ec2
  • USN-1227-1: linux-image-2.6.35-30-powerpc64-smp, linux-image-2.6.35-30-generic, linux, linux-image-2.6.35-30-powerpc-smp, linux-image-2.6.35-30-versatile, linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-powerpc, linux-image-2.6.35-30-server, linux-image-2.6.35-30-omap, linux-image-2.6.35-30-generic-pae
  • USN-1203-1: linux-mvl-dove, linux-image-2.6.32-218-dove
  • USN-1162-1: linux-image-2.6.32-217-dove, linux-mvl-dove
  • USN-1239-1: linux-image-2.6.32-319-ec2, linux-ec2
  • USN-1219-1: linux-image-2.6.35-30-generic, 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-pae