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Ubuntu 12.04 LTS USN-3082-2 Moderate: OMAP4 Code Execution Risk

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Calendar Grey September 19, 2016
Scroller Ubuntu
The Ubuntu Security Notice USN-3082-2 addresses a vulnerability in linux-ti-omap4 that permits unapproved execution of programs.
The system could be made to run programs as an administrator.

Summary

The system could be made to run programs as an administrator.

Software Description:

- linux-ti-omap4: Linux kernel for OMAP4

Details:

Chiachih Wu, Yuan-Tsung Lo, and Xuxian Jiang discovered that the legacy ABI

for ARM (OABI) had incomplete access checks for epoll_wait(2) and

semtimedop(2). A local attacker could use this to possibly execute

arbitrary code.

Topics%20covered

Topics Covered

security advisory arbitrary code execution ubuntu administrative access linux kernel

Update Instructions

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

Ubuntu 12.04 LTS:
  linux-image-3.2.0-1488-omap4    3.2.0-1488.115

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

CVE-2016-3857

Severity
important
Lowest
Low
Medium
High
Critical

September 19, 2016

Topics%20covered

Topics Covered

security advisory arbitrary code execution ubuntu administrative access linux kernel

Package Information

https://launchpad.net/ubuntu/+source/linux-ti-omap4/3.2.0-1488.115

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