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 1 524
Alerts This Week
Warning Icon 1 524

Ubuntu 10.04 LTS: USN-1653-1 Critical: Linux-EC2 Denial Of Service

ubuntu
Calendar Grey December 4, 2012
Scroller Ubuntu
Ubuntu Security Alert USN-1765-2 highlights a severe vulnerability in linux-azure, which permits unauthorized programs to execute with elevated privileges.
The system could be made to run programs as an administrator.

Summary

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

Software Description:

- linux-ec2: Linux kernel for EC2

Details:

Rodrigo Freire discovered a flaw in the Linux kernel's TCP illinois

congestion control algorithm. A local attacker could use this to cause a

denial of service.

Topics%20covered

Topics Covered

security advisory denial of service critical issue ubuntu linux-ec2

Update Instructions

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

Ubuntu 10.04 LTS:
  linux-image-2.6.32-350-ec2      2.6.32-350.57

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-1653-1

CVE-2012-4565

Severity
critical
Lowest
Low
Medium
High
Critical

December 04, 2012

Topics%20covered

Topics Covered

security advisory denial of service critical issue ubuntu linux-ec2

Package Information

https://launchpad.net/ubuntu/+source/linux-ec2/2.6.32-350.57

Get the latest News and Insights

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