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Ubuntu 12.04 LTS USN-2997-1 Critical: Kernel Denial of Service Issues

ubuntu
Calendar Grey June 10, 2016
Scroller Ubuntu
Ubuntu Security Announcement USN-2998-1 addresses critical kernel flaws in Ubuntu 12.04 LTS, providing essential remediation steps.
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:

Jann Horn discovered that eCryptfs improperly attempted to use the mmap()

handler of a lower filesystem that did not implement one, causing a

recursive page fault to occur. A local unprivileged attacker could use to

cause a denial of service (system crash) or possibly execute arbitrary code

with administrative privileges. (CVE-2016-1583)

Ralf Spenneberg discovered that the USB sound subsystem in the Linux kernel

did not properly validate USB device descriptors. An attacker with physical

access could use this to cause a denial of service (system crash).

(CVE-2016-2184)

Ralf Spenneberg discovered that the ATI Wonder Remote II USB driver in the

Linux kernel did not properly validate USB device descriptors. An attacker

with physical access could use this to cause a denial of service (system

crash). (CVE-2016-2185)

Ralf Spenneberg discov...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu kernel system crash remedies USB issues

Update Instructions

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

Ubuntu 12.04 LTS:
  linux-image-3.2.0-1482-omap4    3.2.0-1482.109

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-2997-1

CVE-2016-1583, CVE-2016-2184, CVE-2016-2185, CVE-2016-2186,

CVE-2016-2187, CVE-2016-2188, CVE-2016-3136, CVE-2016-3137,

CVE-2016-3138, CVE-2016-3140, CVE-2016-3156, CVE-2016-3157,

CVE-2016-3672, CVE-2016-3955, CVE-2016-4485, CVE-2016-4486

Severity
critical
Lowest
Low
Medium
High
Critical

June 10, 2016

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu kernel system crash remedies USB issues

Package Information

https://launchpad.net/ubuntu/+source/linux-ti-omap4/3.2.0-1482.109

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