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Ubuntu 11.04: USN-1304-1 Moderate: Linux Kernel OMAP4 Security Risks

ubuntu
Calendar Grey December 13, 2011
Scroller Ubuntu
A comprehensive patch for Ubuntu 11.04 has been released, targeting multiple vulnerabilities in the linux-ti-omap4 kernel to enhance security and minimize service interruptions
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 bug was discovered in the XFS filesystem's handling of pathnames. A local

attacker could exploit this to crash the system, leading to a denial of

service, or gain root privileges. (CVE-2011-4077)

Nick Bowler discovered the kernel GHASH message digest algorithm

incorrectly handled error conditions. A local attacker could exploit this

to cause a kernel oops. (CVE-2011-4081)

Scot Doyle discovered that the bridge networking interface incorrectly

handled certain network packets. A remote attacker could exploit this to

crash the system, leading to a denial of service. (CVE-2011-4087)

A flaw was found in the Journaling Block Device (JBD). A local attacker

able to mount ext3 or ext4 file systems could exploit this to crash the

system, leading to a denial of service. (CVE-2011-4132)

A bug was found in the way headroom check was performed ...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory local exploit service denial ubuntu linux kernel

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   2.6.38-1209.18

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

References

https://ubuntu.com/security/notices/USN-1304-1

CVE-2011-4077, CVE-2011-4081, CVE-2011-4087, CVE-2011-4132,

CVE-2011-4326, CVE-2011-4330

December 13, 2011

Topics%20covered

Topics Covered

security advisory local exploit service denial ubuntu linux kernel

Package Information

https://launchpad.net/ubuntu/+source/linux-ti-omap4/2.6.38-1209.18

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