USN-2020-1: Linux kernel (Raring HWE) vulnerabilities

Releases

• Ubuntu 12.04

Packages

• linux-lts-raring - Linux hardware enablement kernel from Raring

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)

Dan Carpenter discovered an information leak in the HP Smart Array and
Compaq SMART2 disk-array driver in the Linux kernel. A local user could
exploit this flaw to obtain sensitive information from kernel memory.
(CVE-2013-2147)

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 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 a flaw in the Human Interface Device (HID) subsystem
of the Linux kernel when CONFIG_HID_LENOVO_TPKBD is enabled. A physically
proximate attacker could exploit this flaw to cause a denial of service via
a specially crafted device. (CVE-2013-2894)

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 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)

Miroslav Vadkerti discovered a flaw in how the permissions for network
sysctls are handled in the Linux kernel. An unprivileged local user could
exploit this flaw to have privileged access to files in /proc/sys/net/.
(CVE-2013-4270)

Wannes Rombouts reported a vulnerability in the networking tuntap interface
of the Linux kernel. A local user with the CAP_NET_ADMIN capability could
leverage this flaw to gain full admin privileges. (CVE-2013-4343)

Update instructions

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

Ubuntu 12.04

• linux-image-3.8.0-33-generic - 3.8.0-33.48~precise1

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-2013-0343
• CVE-2013-2147
• CVE-2013-2889
• CVE-2013-2893
• CVE-2013-2894
• CVE-2013-2895
• CVE-2013-2897
• CVE-2013-4270
• CVE-2013-4343

Related notices

• USN-2019-1: linux-lts-quantal, linux-image-3.5.0-43-generic
• USN-2038-1: linux-image-3.2.0-57-generic, linux-image-3.2.0-57-omap, linux-image-3.2.0-57-virtual, linux-image-3.2.0-57-powerpc-smp, linux, linux-image-3.2.0-57-highbank, linux-image-3.2.0-57-powerpc64-smp, linux-image-3.2.0-57-generic-pae
• USN-2023-1: linux-image-3.8.0-33-generic, linux
• USN-1976-1: linux-image-2.6.32-52-386, linux-image-2.6.32-52-generic, linux-image-2.6.32-52-powerpc-smp, linux-image-2.6.32-52-powerpc64-smp, linux-image-2.6.32-52-sparc64-smp, linux-image-2.6.32-52-powerpc, linux-image-2.6.32-52-generic-pae, linux-image-2.6.32-52-sparc64, linux-image-2.6.32-52-versatile, linux, linux-image-2.6.32-52-lpia, linux-image-2.6.32-52-server, linux-image-2.6.32-52-preempt, linux-image-2.6.32-52-virtual, linux-image-2.6.32-52-ia64
• USN-1977-1: linux-image-2.6.32-357-ec2, linux-ec2
• USN-2021-1: linux-image-3.5.0-43-omap, linux-image-3.5.0-43-powerpc64-smp, linux, linux-image-3.5.0-43-powerpc-smp, linux-image-3.5.0-43-highbank, linux-image-3.5.0-43-generic
• USN-2022-1: linux-image-3.5.0-235-omap4, linux-ti-omap4
• USN-2039-1: linux-image-3.2.0-1441-omap4, linux-ti-omap4
• USN-2050-1: linux-ti-omap4, linux-image-3.5.0-236-omap4
• USN-2024-1: linux-image-3.5.0-235-omap4, linux-ti-omap4
• USN-2017-1: linux-image-3.2.0-56-generic, linux-image-3.2.0-56-omap, linux-image-3.2.0-56-generic-pae, linux, linux-image-3.2.0-56-virtual, linux-image-3.2.0-56-powerpc64-smp, linux-image-3.2.0-56-highbank, linux-image-3.2.0-56-powerpc-smp
• USN-1999-1: linux-ti-omap4, linux-image-3.5.0-234-omap4
• USN-1994-1: linux-lts-quantal, linux-image-3.5.0-42-generic
• USN-2018-1: linux-ti-omap4, linux-image-3.2.0-1440-omap4
• USN-1996-1: linux-image-3.5.0-42-generic, linux-image-3.5.0-42-powerpc64-smp, linux-image-3.5.0-42-highbank, linux-image-3.5.0-42-powerpc-smp, linux, linux-image-3.5.0-42-omap
• USN-2016-1: linux-ec2, linux-image-2.6.32-358-ec2
• USN-2015-1: linux-image-2.6.32-53-sparc64-smp, linux-image-2.6.32-53-generic, linux-image-2.6.32-53-powerpc-smp, linux-image-2.6.32-53-preempt, linux-image-2.6.32-53-versatile, linux-image-2.6.32-53-virtual, linux, linux-image-2.6.32-53-386, linux-image-2.6.32-53-lpia, linux-image-2.6.32-53-sparc64, linux-image-2.6.32-53-powerpc, linux-image-2.6.32-53-generic-pae, linux-image-2.6.32-53-server, linux-image-2.6.32-53-ia64, linux-image-2.6.32-53-powerpc64-smp
• USN-1997-1: linux-ti-omap4, linux-image-3.5.0-234-omap4
• USN-2049-1: linux-image-3.11.0-14-generic, linux-image-3.11.0-14-generic-lpae, linux