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=========================================================================Ubuntu Security Notice USN-3126-2
November 11, 2016

linux-ti-omap4 vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.04 LTS

Summary:

Several security issues were fixed in the kernel.

Software Description:
- linux-ti-omap4: Linux kernel for OMAP4

Details:

Ondrej Kozina discovered that the keyring interface in the Linux kernel
contained a buffer overflow when displaying timeout events via the
/proc/keys interface. A local attacker could use this to cause a denial of
service (system crash). (CVE-2016-7042)

Dmitry Vyukov discovered a use-after-free vulnerability during error
processing in the recvmmsg(2) implementation in the Linux kernel. A remote
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2016-7117)

Update instructions:

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

Ubuntu 12.04 LTS:
  linux-image-3.2.0-1493-omap4    3.2.0-1493.120
  linux-image-omap4               3.2.0.1493.88

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-3126-2
  https://ubuntu.com/security/notices/USN-3126-1
  CVE-2016-7042, CVE-2016-7117

Package Information:
  https://launchpad.net/ubuntu/+source/linux-ti-omap4/3.2.0-1493.120

Ubuntu 3126-2: Linux kernel (OMAP4) vulnerabilities

November 11, 2016
Several security issues were fixed in the kernel.

Summary

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 12.04 LTS: linux-image-3.2.0-1493-omap4 3.2.0-1493.120 linux-image-omap4 3.2.0.1493.88 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-3126-2

https://ubuntu.com/security/notices/USN-3126-1

CVE-2016-7042, CVE-2016-7117

Severity
November 11, 2016

Package Information

https://launchpad.net/ubuntu/+source/linux-ti-omap4/3.2.0-1493.120

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