USN-2066-1: Linux kernel vulnerabilities

Ubuntu Security Notice USN-2066-1

3rd January, 2014

linux vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 12.04 LTS

Summary

Several security issues were fixed in the kernel.

Software description

• linux - Linux kernel

Details

A flaw was discovered in the Linux kernel's dm snapshot facility. A remote

authenticated user could exploit this flaw to obtain sensitive information

or modify/corrupt data. (CVE-2013-4299)

Hannes Frederic Sowa discovered a flaw in the Linux kernel's UDP

Fragmentation Offload (UFO). An unprivileged local user could exploit this

flaw to cause a denial of service (system crash) or possibly gain

administrative privileges. (CVE-2013-4470)

Multiple integer overflow flaws were discovered in the Alchemy LCD frame-

buffer drivers in the Linux kernel. An unprivileged local user could

exploit this flaw to gain administrative privileges. (CVE-2013-4511)

Nico Golde and Fabian Yamaguchi reported a flaw in the Linux kernel's

driver for Agere Systems HERMES II Wireless PC Cards. A local user with the

CAP_NET_ADMIN capability could exploit this flaw to cause a denial of

service or possibly gain adminstrative priviliges. (CVE-2013-4514)

Nico Golde and Fabian Yamaguchi reported a flaw in the Linux kernel's

driver for Beceem WIMAX chipset based devices. An unprivileged local user

could exploit this flaw to obtain sensitive information from kernel memory.

(CVE-2013-4515)

A flaw in the handling of memory regions of the kernel virtual machine

(KVM) subsystem was discovered. A local user with the ability to assign a

device could exploit this flaw to cause a denial of service (memory

consumption). (CVE-2013-4592)

Nico Golde and Fabian Yamaguchi reported a flaw in the Linux kernel's

debugfs filesystem. An administrative local user could exploit this flaw to

cause a denial of service (OOPS). (CVE-2013-6378)

A flaw was discovered in the Linux kernel's compat ioctls for Adaptec

AACRAID scsi raid devices. An unprivileged local user could send

administrative commands to these devices potentially compromising the data

stored on the device. (CVE-2013-6383)

Nico Golde reported a flaw in the Linux kernel's userspace IO (uio) driver.

A local user could exploit this flaw to cause a denial of service (memory

corruption) or possibly gain privileges. (CVE-2013-6763)

Evan Huus reported a buffer overflow in the Linux kernel's radiotap header

parsing. A remote attacker could cause a denial of service (buffer over-

read) via a specially crafted header. (CVE-2013-7027)

Update instructions

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

Ubuntu 12.04 LTS:

linux-image-3.2.0-58-omap 3.2.0-58.88

linux-image-3.2.0-58-powerpc-smp 3.2.0-58.88

linux-image-3.2.0-58-virtual 3.2.0-58.88

linux-image-3.2.0-58-powerpc64-smp 3.2.0-58.88

linux-image-3.2.0-58-generic-pae 3.2.0-58.88

linux-image-3.2.0-58-highbank 3.2.0-58.88

linux-image-3.2.0-58-generic 3.2.0-58.88

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

CVE-2013-4299, CVE-2013-4470, CVE-2013-4511, CVE-2013-4514, CVE-2013-4515, CVE-2013-4592, CVE-2013-6378, CVE-2013-6383, CVE-2013-6763, CVE-2013-7027

via Ubuntu Security Notices http://www.ubuntu.com/usn/usn-2066-1/