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Ubuntu 12.04 LTS USN-3126-2 Moderate: OMAP4 Kernel Denial of Service

ubuntu
Calendar Grey November 11, 2016
Scroller Ubuntu
Several security flaws resolved in Linux kernel for Ubuntu 12.04 LTS. Patch released to mitigate threats mentioned in advisory USN-3126-2.
Several security issues were fixed in the kernel.

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)

Topics%20covered

Topics Covered

security advisory moderate denial of service kernel fix linux-ti-omap4

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

November 11, 2016

Topics%20covered

Topics Covered

security advisory moderate denial of service kernel fix linux-ti-omap4

Package Information

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

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