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Alerts This Week
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Ubuntu 15.10 USN-2978-3 Critical: linux-raspi2 DoS Threat

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Calendar Grey May 16, 2016
Scroller Ubuntu
A security alert highlighting critical vulnerabilities identified in Ubuntu's linux-raspi2 kernel, compromising system integrity and user accessibility.
The system could be made to crash or run programs as an administrator.

Summary

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

Software Description:

- linux-raspi2: Linux kernel for Raspberry Pi 2

Details:

Philip Pettersson discovered that the Linux kernel's ASN.1 DER decoder did

not properly process certificate files with tags of indefinite length. A

local unprivileged attacker could use this to cause a denial of service

(system crash) or possibly execute arbitrary code with administrative

privileges.

Topics%20covered

Topics Covered

security advisory denial of service kernel ubuntu admin access linux-raspi2

Update Instructions

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

Ubuntu 15.10:
  linux-image-4.2.0-1029-raspi2   4.2.0-1029.38

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-2978-3

https://ubuntu.com/security/notices/USN-2978-1

CVE-2016-0758

Severity
critical
Lowest
Low
Medium
High
Critical

May 16, 2016

Topics%20covered

Topics Covered

security advisory denial of service kernel ubuntu admin access linux-raspi2

Package Information

https://launchpad.net/ubuntu/+source/linux-raspi2/4.2.0-1029.38

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