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 1 544
Alerts This Week
Warning Icon 1 544

Ubuntu 12.10 Advisory USN-1882-1 Critical: Kernel Security Issues

ubuntu
Calendar Grey June 14, 2013
Scroller Ubuntu
Numerous vulnerabilities resolved in the Linux kernel for OMAP4 on Ubuntu bolster system robustness and improve user safety.
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:

Kees Cook discovered a flaw in the Linux kernel's iSCSI subsystem. A remote

unauthenticated attacker could exploit this flaw to cause a denial of

service (system crash) or potentially gain administrative privileges.

(CVE-2013-2850)

An information leak was discovered in the Linux kernel when inotify is used

to monitor the /dev/ptmx device. A local user could exploit this flaw to

discover keystroke timing and potentially discover sensitive information

like password length. (CVE-2013-0160)

An information leak was discovered in the Linux kernel's tkill and tgkill

system calls when used from compat processes. A local user could exploit

this flaw to examine potentially sensitive kernel memory. (CVE-2013-2141)

A flaw was discovered in the Linux kernel's perf events subsystem for Intel

Sandy Bridge and Ivy Bridge processors. A local user cou...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service information leak Ubuntu local exploit kernel system update

Update Instructions

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

Ubuntu 12.10:
  linux-image-3.5.0-226-omap4     3.5.0-226.39

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-1882-1

CVE-2013-0160, CVE-2013-2141, CVE-2013-2146, CVE-2013-2850,

CVE-2013-3076, CVE-2013-3222, CVE-2013-3223, CVE-2013-3224,

CVE-2013-3225, CVE-2013-3227, CVE-2013-3228, CVE-2013-3229,

CVE-2013-3230, CVE-2013-3231, CVE-2013-3232, CVE-2013-3233,

CVE-2013-3234, CVE-2013-3235

Severity
critical
Lowest
Low
Medium
High
Critical

June 14, 2013

Topics%20covered

Topics Covered

security advisory denial of service information leak Ubuntu local exploit kernel system update

Package Information

https://launchpad.net/ubuntu/+source/linux-ti-omap4/3.5.0-226.39

Get the latest News and Insights

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