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Ubuntu 12.04 LTS: 2038-1 Critical Security Flaws in Multiple Kernels

ubuntu
Calendar Grey December 3, 2013
Scroller Ubuntu
Urgent vulnerabilities in the Ubuntu 12.04 LTS kernel necessitate prompt action for system protection; adhere to upgrade procedures.
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux: Linux kernel

Details:

An information leak was discovered in the handling of ICMPv6 Router

Advertisement (RA) messages in the Linux kernel's IPv6 network stack. A

remote attacker could exploit this flaw to cause a denial of service

(excessive retries and address-generation outage), and consequently obtain

sensitive information. (CVE-2013-0343)

A flaw was discovered in the Xen subsystem of the Linux kernel when it

provides read-only access to a disk that supports TRIM or SCSI UNMAP to a

guest OS. A privileged user in the guest OS could exploit this flaw to

destroy data on the disk, even though the guest OS should not be able to

write to the disk. (CVE-2013-2140)

Kees Cook discovered flaw in the Human Interface Device (HID) subsystem of

the Linux kernel. A physically proximate attacker could exploit this flaw

to execute arbitrary code or cause a denial of service (heap memory

c...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service security issue information leak kernel update ubuntu kernel exploit

Update Instructions

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

Ubuntu 12.04 LTS:
  linux-image-3.2.0-57-generic    3.2.0-57.87
  linux-image-3.2.0-57-generic-pae  3.2.0-57.87
  linux-image-3.2.0-57-highbank   3.2.0-57.87
  linux-image-3.2.0-57-omap       3.2.0-57.87
  linux-image-3.2.0-57-powerpc-smp  3.2.0-57.87
  linux-image-3.2.0-57-powerpc64-smp  3.2.0-57.87
  linux-image-3.2.0-57-virtual    3.2.0-57.87

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

https://ubuntu.com/security/notices/USN-2038-1

CVE-2013-0343, CVE-2013-2140, CVE-2013-2888, CVE-2013-2889,

CVE-2013-2892, CVE-2013-2893, CVE-2013-2895, CVE-2013-2896,

CVE-2013-2897, CVE-2013-2899, CVE-2013-4350, CVE-2013-4387

Severity
critical
Lowest
Low
Medium
High
Critical

December 03, 2013

Topics%20covered

Topics Covered

security advisory denial of service security issue information leak kernel update ubuntu kernel exploit

Package Information

https://launchpad.net/ubuntu/+source/linux/3.2.0-57.87

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