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Alerts This Week
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Ubuntu 11.04 USN-1458-1 Urgent: OMAP4 Kernel Vulnerabilities Detected

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Calendar Grey May 31, 2012
Scroller Ubuntu
The Ubuntu Security Advisory USN-2021-45 addresses several critical vulnerabilities related to the Linux kernel due to QEMU-related weaknesses.
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:

A flaw was found in the Linux's kernels ext4 file system when mounted with

a journal. A local, unprivileged user could exploit this flaw to cause a

denial of service. (CVE-2011-4086)

A flaw was discovered in the Linux kernel's cifs file system. An

unprivileged local user could exploit this flaw to crash the system leading

to a denial of service. (CVE-2012-1090)

H. Peter Anvin reported a flaw in the Linux kernel that could crash the

system. A local user could exploit this flaw to crash the system.

(CVE-2012-1097)

A flaw was discovered in the Linux kernel's cgroups subset. A local

attacker could use this flaw to crash the system. (CVE-2012-1146)

A flaw was found in the Linux kernel's ext4 file system when mounting a

corrupt filesystem. A user-assisted remote attacker could exploit this flaw

to cause a denial of service. (CVE-2012-21...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service critical kernel issue ubuntu system crash omap4

Update Instructions

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

Ubuntu 11.04:
  linux-image-2.6.38-1209-omap4   2.6.38-1209.24

After a standard system update you need to reboot your computer to make
all the necessary changes.

References

https://ubuntu.com/security/notices/USN-1458-1

CVE-2011-4086, CVE-2012-1090, CVE-2012-1097, CVE-2012-1146,

CVE-2012-2100

Severity
important
Lowest
Low
Medium
High
Critical

May 31, 2012

Topics%20covered

Topics Covered

security advisory denial of service critical kernel issue ubuntu system crash omap4

Package Information

https://launchpad.net/ubuntu/+source/linux-ti-omap4/2.6.38-1209.24

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