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Ubuntu 10.04 LTS: USN-1877-1 Critical: Linux Kernel Exploits

ubuntu
Calendar Grey June 14, 2013
Scroller Ubuntu
Several weaknesses identified in Ubuntu's Linux kernel addressed. Necessary steps to ensure the safety and reliability of the system.
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux-ec2: Linux kernel for EC2

Details:

Andrew Honig reported a flaw in the way KVM (Kernel-based Virtual Machine)

emulated the IOAPIC. A privileged guest user could exploit this flaw to

read host memory or cause a denial of service (crash the host).

(CVE-2013-1798)

An information leak was discovered in the Linux kernel's rcvmsg path for

ATM (Asynchronous Transfer Mode). A local user could exploit this flaw to

examine potentially sensitive information from the kernel's stack memory.

(CVE-2013-3222)

An information leak was discovered in the Linux kernel's recvmsg path for

ax25 address family. A local user could exploit this flaw to examine

potentially sensitive information from the kernel's stack memory.

(CVE-2013-3223)

An information leak was discovered in the Linux kernel's recvmsg path for

the bluetooth address family. A local user could exploit this flaw to

examine potential...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service information leak critical ubuntu kernel exploit linux-ec2

Update Instructions

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

Ubuntu 10.04 LTS:
  linux-image-2.6.32-353-ec2      2.6.32-353.66

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-1877-1

CVE-2013-1798, CVE-2013-3222, CVE-2013-3223, CVE-2013-3224,

CVE-2013-3225, CVE-2013-3228, CVE-2013-3229, CVE-2013-3231,

CVE-2013-3232, CVE-2013-3234, CVE-2013-3235

Severity
critical
Lowest
Low
Medium
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Critical

June 14, 2013

Topics%20covered

Topics Covered

security advisory denial of service information leak critical ubuntu kernel exploit linux-ec2

Package Information

https://launchpad.net/ubuntu/+source/linux-ec2/2.6.32-353.66

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