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Ubuntu 12.04 ESM USN-3470-2 Critical: Linux Kernel Buffer Overflows

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Calendar Grey October 31, 2017
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Several vulnerabilities have been identified in the Linux kernel for Ubuntu 12.04 ESM, necessitating immediate updates to maintain system integrity.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-lts-trusty: Linux hardware enablement kernel from Trusty for Precise ESM

Details:

USN-3470-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04

LTS. This update provides the corresponding updates for the Linux

Hardware Enablement (HWE) kernel from Ubuntu 14.04 LTS for Ubuntu

12.04 ESM.

Qian Zhang discovered a heap-based buffer overflow in the tipc_msg_build()

function in the Linux kernel. A local attacker could use to cause a denial

of service (system crash) or possibly execute arbitrary code with

administrative privileges. (CVE-2016-8632)

Dmitry Vyukov discovered that a race condition existed in the timerfd

subsystem of the Linux kernel when handling might_cancel queuing. A local

attacker could use this to cause a denial of service (system crash) or

possibly execute arbitrary code. (CVE-2017-10661)

It was discovered that the Flash-Friendly File System (f2fs) implementation

in the Li...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow code execution ubuntu linux-lts-trusty

Update Instructions

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

Ubuntu 12.04 ESM:
  linux-image-3.13.0-135-generic  3.13.0-135.184~precise1
  linux-image-3.13.0-135-generic-lpae  3.13.0-135.184~precise1
  linux-image-generic-lpae-lts-trusty  3.13.0.135.125
  linux-image-generic-lts-trusty  3.13.0.135.125

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.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References

https://ubuntu.com/security/notices/USN-3470-2

https://ubuntu.com/security/notices/USN-3470-1

CVE-2016-8632, CVE-2017-10661, CVE-2017-10662, CVE-2017-10663,

CVE-2017-10911, CVE-2017-11176, CVE-2017-14340

Severity
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Critical

October 31, 2017

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow code execution ubuntu linux-lts-trusty

Package Information

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