Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×

Alerts This Week
Warning Icon 1 461
Alerts This Week
Warning Icon 1 461

Ubuntu 12.04 LTS USN-2260-1 Critical: Linux Kernel DoS Threats

ubuntu
Calendar Grey June 27, 2014
Scroller Ubuntu
Multiple vulnerabilities addressed in the Ubuntu kernel to avert system failures and safeguard against unpermitted entries. Ensure your system is current.
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux-lts-trusty: Block storage devices (udeb)

Details:

A flaw was discovered in the Linux kernel's pseudo tty (pty) device. An

unprivileged user could exploit this flaw to cause a denial of service

(system crash) or potentially gain administrator privileges.

(CVE-2014-0196)

Pinkie Pie discovered a flaw in the Linux kernel's futex subsystem. An

unprivileged local user could exploit this flaw to cause a denial of

service (system crash) or gain administrative privileges. (CVE-2014-3153)

Matthew Daley reported an information leak in the floppy disk driver of the

Linux kernel. An unprivileged local user could exploit this flaw to obtain

potentially sensitive information from kernel memory. (CVE-2014-1738)

Matthew Daley reported a flaw in the handling of ioctl commands by the

floppy disk driver in the Linux kernel. An unprivileged local user could

exploit this flaw to gain administrati...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service system crash linux-lts-trusty administrative privileges

Update Instructions

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

Ubuntu 12.04 LTS:
  linux-image-3.13.0-30-generic   3.13.0-30.54~precise2
  linux-image-3.13.0-30-generic-lpae  3.13.0-30.54~precise2

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. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-generic,
linux-server, linux-powerpc), a standard system upgrade will automatically
perform this as well.

References

https://ubuntu.com/security/notices/USN-2260-1

CVE-2014-0077, CVE-2014-0196, CVE-2014-1737, CVE-2014-1738,

CVE-2014-2568, CVE-2014-2851, CVE-2014-3122, CVE-2014-3153

Severity
critical
Lowest
Low
Medium
High
Critical

June 27, 2014

Topics%20covered

Topics Covered

security advisory denial of service system crash linux-lts-trusty administrative privileges

Package Information

https://launchpad.net/ubuntu/+source/linux-lts-trusty/3.13.0-30.54~precise2

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.