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Ubuntu Security Notice USN-2038-1

Ubuntu Security Notice USN-2038-1
Posted Dec 4, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2038-1 - An information leak was discovered in the handling of ICMPv6 Router Advertisement (RA) messages in the Linux kernel's IPv6 network stack. A remote attacker could exploit this flaw to cause a denial of service (excessive retries and address-generation outage), and consequently obtain sensitive information. 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 SCSI UNMAP to a guest OS. A privileged user in the guest OS could exploit this flaw to destroy data on the disk, even though the guest OS should not be able to write to the disk. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel
systems | linux, ubuntu
advisories | CVE-2013-0343, CVE-2013-2140, CVE-2013-2888, CVE-2013-2889, CVE-2013-2892, CVE-2013-2893, CVE-2013-2895, CVE-2013-2896, CVE-2013-2897, CVE-2013-2899, CVE-2013-4350, CVE-2013-4387, CVE-2013-0343, CVE-2013-2140, CVE-2013-2888, CVE-2013-2889, CVE-2013-2892, CVE-2013-2893, CVE-2013-2895, CVE-2013-2896, CVE-2013-2897, CVE-2013-2899, CVE-2013-4350, CVE-2013-4387
MD5 | f65d048c6aebe645394d59abc997b0ac

Ubuntu Security Notice USN-2038-1

Change Mirror Download
============================================================================
Ubuntu Security Notice USN-2038-1
December 03, 2013

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:

An information leak was discovered in the handling of ICMPv6 Router
Advertisement (RA) messages in the Linux kernel's IPv6 network stack. A
remote attacker could exploit this flaw to cause a denial of service
(excessive retries and address-generation outage), and consequently obtain
sensitive information. (CVE-2013-0343)

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 SCSI UNMAP to a
guest OS. A privileged user in the guest OS could exploit this flaw to
destroy data on the disk, even though the guest OS should not be able to
write to the disk. (CVE-2013-2140)

Kees Cook discovered flaw in the Human Interface Device (HID) subsystem of
the Linux kernel. A physically proximate attacker could exploit this flaw
to execute arbitrary code or cause a denial of service (heap memory
corruption) via a specially crafted device that provides an invalid Report
ID. (CVE-2013-2888)

Kees Cook discovered flaw in the Human Interface Device (HID) subsystem
when CONFIG_HID_ZEROPLUS is enabled. A physically proximate attacker could
leverage this flaw to cause a denial of service via a specially crafted
device. (CVE-2013-2889)

Kees Cook discovered a flaw in the Human Interface Device (HID) subsystem
of the Linux kerenl when CONFIG_HID_PANTHERLORD is enabled. A physically
proximate attacker could cause a denial of service (heap out-of-bounds
write) via a specially crafted device. (CVE-2013-2892)

Kees Cook discovered another flaw in the Human Interface Device (HID)
subsystem of the Linux kernel when any of CONFIG_LOGITECH_FF,
CONFIG_LOGIG940_FF, or CONFIG_LOGIWHEELS_FF are enabled. A physcially
proximate attacker can leverage this flaw to cause a denial of service vias
a specially crafted device. (CVE-2013-2893)

Kees Cook discovered another flaw in the Human Interface Device (HID)
subsystem of the Linux kernel when CONFIG_HID_LOGITECH_DJ is enabled. A
physically proximate attacker could cause a denial of service (OOPS) or
obtain sensitive information from kernel memory via a specially crafted
device. (CVE-2013-2895)

Kees Cook discovered a vulnerability in the Linux Kernel's Human Interface
Device (HID) subsystem's support for N-Trig touch screens. A physically
proximate attacker could exploit this flaw to cause a denial of service
(OOPS) via a specially crafted device. (CVE-2013-2896)

Kees Cook discovered yet another flaw in the Human Interface Device (HID)
subsystem of the Linux kernel when CONFIG_HID_MULTITOUCH is enabled. A
physically proximate attacker could leverage this flaw to cause a denial of
service (OOPS) via a specially crafted device. (CVE-2013-2897)

Kees Cook discovered a flaw in the Human Interface Device (HID) subsystem
of the Linux kernel whe CONFIG_HID_PICOLCD is enabled. A physically
proximate attacker could exploit this flaw to cause a denial of service
(OOPS) via a specially crafted device. (CVE-2013-2899)

Alan Chester reported a flaw in the IPv6 Stream Control Transmission
Protocol (SCTP) of the Linux kernel. A remote attacker could exploit this
flaw to obtain sensitive information by sniffing network traffic.
(CVE-2013-4350)

Dmitry Vyukov reported a flaw in the Linux kernel's handling of IPv6 UDP
Fragmentation Offload (UFO) processing. A remote attacker could leverage
this flaw to cause a denial of service (system crash). (CVE-2013-4387)

Update instructions:

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

Ubuntu 12.04 LTS:
linux-image-3.2.0-57-generic 3.2.0-57.87
linux-image-3.2.0-57-generic-pae 3.2.0-57.87
linux-image-3.2.0-57-highbank 3.2.0-57.87
linux-image-3.2.0-57-omap 3.2.0-57.87
linux-image-3.2.0-57-powerpc-smp 3.2.0-57.87
linux-image-3.2.0-57-powerpc64-smp 3.2.0-57.87
linux-image-3.2.0-57-virtual 3.2.0-57.87

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:
http://www.ubuntu.com/usn/usn-2038-1
CVE-2013-0343, CVE-2013-2140, CVE-2013-2888, CVE-2013-2889,
CVE-2013-2892, CVE-2013-2893, CVE-2013-2895, CVE-2013-2896,
CVE-2013-2897, CVE-2013-2899, CVE-2013-4350, CVE-2013-4387

Package Information:
https://launchpad.net/ubuntu/+source/linux/3.2.0-57.87

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