Home / mailings

PDF

[USN-2158-1] Linux kernel (Raring HWE) vulnerabilities

Posted on 01 April 2014
Ubuntu Security

==========================
==========================
========================
Ubuntu Security Notice USN-2158-1
April 01, 2014

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

Details:

Stephan Mueller reported an error in the Linux kernel's ansi cprng random=

number generator. This flaw makes it easier for a local attacker to break=

cryptographic protections. (CVE-2013-4345)

Nico Golde and Fabian Yamaguchi reported buffer underflow errors in the
implementation of the XFS filesystem in the Linux kernel. A local user wi=
th
CAP_SYS_ADMIN could exploit these flaw to cause a denial of service (memo=
ry
corruption) or possibly other unspecified issues. (CVE-2013-6382)

An information leak was discovered in the Linux kernel when built with th=
e
NetFilter Connection Tracking (NF_CONNTRACK) support for IRC protocol
(NF_NAT_IRC). A remote attacker could exploit this flaw to obtain
potentially sensitive kernel information when communicating over a client=
-
to-client IRC connection(/dcc) via a NAT-ed network. (CVE-2014-1690)

Update instructions:

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

Ubuntu 12.04 LTS:
linux-image-3.8.0-38-generic 3.8.0-38.56~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 automaticall=
y
perform this as well.

References:
http://www.ubuntu.com/usn/usn-2158-1
CVE-2013-4345, CVE-2013-6382, CVE-2014-1690

Package Information:
https://launchpad.net/ubuntu/+source/linux-lts-raring/3.8.0-38.56~preci=
se1

 

TOP