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USN-1090-1: Linux kernel vulnerabilities

18 March 2011

Multiple kernel vulnerabilities.

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Dan Rosenberg discovered that multiple terminal ioctls did not correctly
initialize structure memory. A local attacker could exploit this to read
portions of kernel stack memory, leading to a loss of privacy.

Dan Rosenberg discovered that the SCSI subsystem did not correctly validate
iov segments. A local attacker with access to a SCSI device could send
specially crafted requests to crash the system, leading to a denial of
service. (CVE-2010-4163, CVE-2010-4668)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

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 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-1092-1: linux-image-2.6.15-57-sparc64, linux-image-2.6.15-57-386, linux-image-2.6.15-57-server, linux-image-2.6.15-57-powerpc, linux-image-2.6.15-57-server-bigiron, linux-image-2.6.15-57-amd64-xeon, linux-image-2.6.15-57-hppa32, linux-image-2.6.15-57-hppa32-smp, 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-itanium, linux-image-2.6.15-57-amd64-generic, linux-image-2.6.15-57-amd64-k8, linux-image-2.6.15-57-hppa64, linux-image-2.6.15-57-hppa64-smp, linux-image-2.6.15-57-powerpc-smp, linux-image-2.6.15-57-k7, linux-image-2.6.15-57-mckinley, linux-image-2.6.15-57-mckinley-smp, linux-image-2.6.15-57-amd64-server, linux-image-2.6.15-57-itanium-smp, linux-image-2.6.15-57-686
  • USN-1089-1: linux-image-2.6.31-23-sparc64-smp, linux-image-2.6.31-23-virtual, linux-image-2.6.31-23-generic-pae, linux-image-2.6.31-23-server, linux-image-2.6.31-23-386, linux-image-2.6.31-23-powerpc, linux-image-2.6.31-308-ec2, linux-ec2, linux-image-2.6.31-23-ia64, linux-image-2.6.31-23-lpia, linux-image-2.6.31-23-powerpc-smp, linux-image-2.6.31-23-generic, linux, linux-image-2.6.31-23-sparc64, linux-image-2.6.31-23-powerpc64-smp
  • USN-1202-1: linux-ti-omap4, linux-image-2.6.35-903-omap4
  • USN-1105-1: linux-image-2.6.24-29-lpiacompat, linux-image-2.6.24-29-lpia, linux-image-2.6.24-29-sparc64, linux-image-2.6.24-29-generic, linux-image-2.6.24-29-hppa64, linux-image-2.6.24-29-server, linux-image-2.6.24-29-itanium, linux-image-2.6.24-29-hppa32, linux-image-2.6.24-29-386, linux-image-2.6.24-29-powerpc-smp, linux-image-2.6.24-29-rt, linux, linux-image-2.6.24-29-virtual, linux-image-2.6.24-29-sparc64-smp, linux-image-2.6.24-29-xen, linux-image-2.6.24-29-mckinley, linux-image-2.6.24-29-openvz, linux-image-2.6.24-29-powerpc64-smp, linux-image-2.6.24-29-powerpc
  • USN-1204-1: linux-image-2.6.31-610-imx51, linux-fsl-imx51
  • USN-1187-1: linux-image-2.6.35-30-server, linux-image-2.6.35-30-generic, linux-image-2.6.35-30-virtual, linux-lts-backport-maverick, linux-image-2.6.35-30-generic-pae
  • USN-1086-1: linux-image-2.6.32-314-ec2, linux-ec2
  • USN-1093-1: linux-mvl-dove, linux-image-2.6.32-216-dove, linux-image-2.6.32-416-dove