ubuntu-security-announce Digest, Vol 105, Issue 11

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Today's Topics:

1. [USN-1883-1] Linux kernel (OMAP4) vulnerabilities (John Johansen)


----------------------------------------------------------------------

Message: 1
Date: Fri, 14 Jun 2013 00:31:29 -0700
From: John Johansen <john.johansen@canonical.com>
To: ubuntu-security-announce@lists.ubuntu.com
Subject: [USN-1883-1] Linux kernel (OMAP4) vulnerabilities
Message-ID: <51BAC6D1.4080800@canonical.com>
Content-Type: text/plain; charset="iso-8859-1"

==========================================================================
Ubuntu Security Notice USN-1883-1
June 14, 2013

linux-ti-omap4 vulnerabilities
==========================================================================

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

- Ubuntu 13.04

Summary:

Several security issues were fixed in the kernel.

Software Description:
- linux-ti-omap4: Linux kernel for OMAP4

Details:

Kees Cook discovered a flaw in the Linux kernel's iSCSI subsystem. A remote
unauthenticated attacker could exploit this flaw to cause a denial of
service (system crash) or potentially gain administrative privileges.
(CVE-2013-2850)

An information leak was discovered in the Linux kernel's crypto API. A
local user could exploit this flaw to examine potentially sensitive
information from the kernel's stack memory. (CVE-2013-3076)

An information leak was discovered in the Linux kernel's rcvmsg path for
ATM (Asynchronous Transfer Mode). A local user could exploit this flaw to
examine potentially sensitive information from the kernel's stack memory.
(CVE-2013-3222)

An information leak was discovered in the Linux kernel's recvmsg path for
ax25 address family. A local user could exploit this flaw to examine
potentially sensitive information from the kernel's stack memory.
(CVE-2013-3223)

An information leak was discovered in the Linux kernel's recvmsg path for
the bluetooth address family. A local user could exploit this flaw to
examine potentially sensitive information from the kernel's stack memory.
(CVE-2013-3224)

An information leak was discovered in the Linux kernel's bluetooth rfcomm
protocol support. A local user could exploit this flaw to examine
potentially sensitive information from the kernel's stack memory.
(CVE-2013-3225)

An information leak was discovered in the Linux kernel's Rose X.25 protocol
layer. A local user could exploit this flaw to examine potentially
sensitive information from the kernel's stack memory. (CVE-2013-3234)

An information leak was discovered in the Linux kernel's TIPC (Transparent
Inter Process Communication) protocol implementation. A local user could
exploit this flaw to examine potentially sensitive information from the
kernel's stack memory. (CVE-2013-3235)

Update instructions:

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

Ubuntu 13.04:
linux-image-3.5.0-226-omap4 3.5.0-226.39

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-1883-1
CVE-2013-2850, CVE-2013-3076, CVE-2013-3222, CVE-2013-3223,
CVE-2013-3224, CVE-2013-3225, CVE-2013-3234, CVE-2013-3235

Package Information:
https://launchpad.net/ubuntu/+source/linux-ti-omap4/3.5.0-226.39

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