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Ubuntu 13.04 USN-1837-1 Critical: Kernel Information Leak Issue

ubuntu
Calendar Grey May 24, 2013
Scroller Ubuntu
Essential patches for Ubuntu resolving vulnerabilities in the Linux kernel, boosting overall system protection. Discover the solution.
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux: Linux kernel

Details:

An information leak was discovered in the Linux kernel's crypto API. A

local user could exploit this flaw to examine potentially sensitive

information from the kernel's stack memory. (CVE-2013-3076)

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 potentially sensitive information from the kernel'...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory information leak critical kernel ubuntu release

Update Instructions

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

Ubuntu 13.04:
  linux-image-3.8.0-22-generic    3.8.0-22.33

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-1837-1

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

CVE-2013-3225, CVE-2013-3226, CVE-2013-3227, CVE-2013-3228,

CVE-2013-3229, CVE-2013-3230, CVE-2013-3231, CVE-2013-3233,

CVE-2013-3234, CVE-2013-3235

Severity
critical
Lowest
Low
Medium
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Critical

May 24, 2013

Topics%20covered

Topics Covered

security advisory information leak critical kernel ubuntu release

Package Information

https://launchpad.net/ubuntu/+source/linux/3.8.0-22.33

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