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Ubuntu 12.04 LTS USN-1942-1 Critical: Kernel Denial of Service Threats

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Calendar Grey September 6, 2013
Scroller Ubuntu
A series of important kernel security updates have been provided in Ubuntu 12.04 LTS for OMAP4, aimed at reducing significant vulnerabilities.
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:

Chanam Park reported a Null pointer flaw in the Linux kernel's Ceph client.

A remote attacker could exploit this flaw to cause a denial of service

(system crash). (CVE-2013-1059)

Vasily Kulikov discovered a flaw in the Linux Kernel's perf tool that

allows for privilege escalation. A local user could exploit this flaw to

run commands as root when using the perf tool. (CVE-2013-1060)

Jonathan Salwan discovered an information leak in the Linux kernel's cdrom

driver. A local user can exploit this leak to obtain sensitive information

from kernel memory if the CD-ROM drive is malfunctioning. (CVE-2013-2164)

A flaw was discovered in the Linux kernel when an IPv6 socket is used to

connect to an IPv4 destination. An unprivileged local user could exploit

this flaw to cause a denial of service (system crash). (CVE-2013-2232)

An information le...

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Topics%20covered

Topics Covered

security advisory information leak privilege escalation kernel Denial of Service ubuntu system crash

Update Instructions

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

Ubuntu 12.04 LTS:
  linux-image-3.2.0-1437-omap4    3.2.0-1437.56

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-1942-1

CVE-2013-1059, CVE-2013-1060, CVE-2013-2164, CVE-2013-2232,

CVE-2013-2234, CVE-2013-2851, CVE-2013-4162, CVE-2013-4163

Severity
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September 06, 2013

Topics%20covered

Topics Covered

security advisory information leak privilege escalation kernel Denial of Service ubuntu system crash

Package Information

https://launchpad.net/ubuntu/+source/linux-ti-omap4/3.2.0-1437.56

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