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USN-1090-1: Linux kernel vulnerabilities

18 March 2011

Multiple kernel vulnerabilities.

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Releases

Packages

Details

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.
(CVE-2010-4075)

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)

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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.

References

Related notices

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

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