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Ubuntu 12.10 USN-1945-1 Critical: Linux Kernel OMAP4 Denial Of Service

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Calendar Grey September 6, 2013
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Ubuntu Security Notice USN-1945-1 addresses kernel vulnerabilities in linux-ti-omap4 that may allow unauthorized access, stressing urgent patch application.
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 denial of service flaw was discovered in the Btrfs file system in the

Linux kernel. A local user could cause a denial of service by creating a

large number of files with names that have the same CRC32 hash value.

(CVE-2012-5374)

A denial of service flaw was discovered in the Btrfs file system in the

Linux kernel. A local user could cause a denial of service (prevent file

creation) for a victim, by creating a file with a specific CRC32C hash

value in a directory important to the victim. (CVE-2012-5375)

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)

A flaw was discovered in the Xen subsystem of the Linux kernel when it

provides read-only access to a disk that supports TRIM or S...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service information leak kernel update ubuntu performance tool linux-ti-omap4

Update Instructions

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

Ubuntu 12.10:
  linux-image-3.5.0-232-omap4     3.5.0-232.48

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-1945-1

CVE-2012-5374, CVE-2012-5375, CVE-2013-1060, CVE-2013-2140,

CVE-2013-2232, CVE-2013-2234, CVE-2013-4162, CVE-2013-4163

Severity
critical
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Critical

September 06, 2013

Topics%20covered

Topics Covered

security advisory denial of service information leak kernel update ubuntu performance tool linux-ti-omap4

Package Information

https://launchpad.net/ubuntu/+source/linux-ti-omap4/3.5.0-232.48

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