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Alerts This Week
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Ubuntu 10.04 LTS: USN-2282-1 Critical: Kernel Flaws Cause DoS

ubuntu
Calendar Grey July 17, 2014
Scroller Ubuntu
Essential Ubuntu Security Alert USN-2283-1 concerns vulnerabilities in the kernel that compromise operational reliability and system robustness.
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux: Linux kernel

Details:

Sasha Levin reported a flaw in the Linux kernel's point-to-point protocol

(PPP) when used with the Layer Two Tunneling Protocol (L2TP). A local user

could exploit this flaw to gain administrative privileges. (CVE-2014-4943)

A flaw was discovered in the Linux kernel's audit subsystem when auditing

certain syscalls. A local attacker could exploit this flaw to obtain

potentially sensitive single-bit values from kernel memory or cause a

denial of service (OOPS). (CVE-2014-3917)

Don Bailey discovered a flaw in the LZO decompress algorithm used by the

Linux kernel. An attacker could exploit this flaw to cause a denial of

service (memory corruption or OOPS). (CVE-2014-4608)

Topics%20covered

Topics Covered

security advisory critical exploit Ubuntu doS kernel flaw administrative privileges

Update Instructions

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

Ubuntu 10.04 LTS:
  linux-image-2.6.32-64-386       2.6.32-64.128
  linux-image-2.6.32-64-generic   2.6.32-64.128
  linux-image-2.6.32-64-generic-pae  2.6.32-64.128
  linux-image-2.6.32-64-ia64      2.6.32-64.128
  linux-image-2.6.32-64-lpia      2.6.32-64.128
  linux-image-2.6.32-64-powerpc   2.6.32-64.128
  linux-image-2.6.32-64-powerpc-smp  2.6.32-64.128
  linux-image-2.6.32-64-powerpc64-smp  2.6.32-64.128
  linux-image-2.6.32-64-preempt   2.6.32-64.128
  linux-image-2.6.32-64-server    2.6.32-64.128
  linux-image-2.6.32-64-sparc64   2.6.32-64.128
  linux-image-2.6.32-64-sparc64-smp  2.6.32-64.128
  linux-image-2.6.32-64-versatile  2.6.32-64.128
  linux-image-2.6.32-64-virtual   2.6.32-64.128

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-2282-1

CVE-2014-3917, CVE-2014-4608, CVE-2014-4943

Severity
critical
Lowest
Low
Medium
High
Critical

July 16, 2014

Topics%20covered

Topics Covered

security advisory critical exploit Ubuntu doS kernel flaw administrative privileges

Package Information

https://launchpad.net/ubuntu/+source/linux/2.6.32-64.128

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