This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--===============2931486902904759820==
Content-Type: multipart/signed; micalg=pgp-sha512;
 protocol="application/pgp-signature";
 boundary="WeEJsoDL3bD2dNOImdEsbhfGe7eoNTPTa"

This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--WeEJsoDL3bD2dNOImdEsbhfGe7eoNTPTa
Content-Type: text/plain; charset=utf-
Content-Transfer-Encoding: quoted-printable

==========================================================================
Ubuntu Security Notice USN-2563-1
April 08, 2015

linux vulnerabilities
==========================================================================

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

- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in the kernel.

Software Description:
- linux: Linux kernel

Details:

Sun Baoliang discovered a use after free flaw in the Linux kernel's SCTP
(Stream Control Transmission Protocol) subsystem during INIT collisions. A
remote attacker could exploit this flaw to cause a denial of service
(system crash) or potentially escalate their privileges on the system.
(CVE-2015-1421)

Marcelo Leitner discovered a flaw in the Linux kernel's routing of packets
to too many different dsts/too fast. A remote attacker can exploit this
flaw to cause a denial of service (system crash). (CVE-2015-1465)

An integer overflow was discovered in the stack randomization feature of
the Linux kernel on 64 bit platforms. A local attacker could exploit this
flaw to bypass the Address Space Layout Randomization (ASLR) mitigation
mechanism. (CVE-2015-1593)

An information leak was discovered in the Linux kernel's handling of
userspace configuration of the link layer control (LLC). A local user could
exploit this flaw to read data from other sysctl settings. (CVE-2015-2041)

An information leak was discovered in how the Linux kernel handles setting
the Reliable Datagram Sockets (RDS) settings. A local user could exploit
this flaw to read data from other sysctl settings. (CVE-2015-2042)

Update instructions:

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

Ubuntu 14.04 LTS:
  linux-image-3.13.0-49-generic   3.13.0-49.81
  linux-image-3.13.0-49-generic-lpae  3.13.0-49.81
  linux-image-3.13.0-49-lowlatency  3.13.0-49.81
  linux-image-3.13.0-49-powerpc-e500  3.13.0-49.81
  linux-image-3.13.0-49-powerpc-e500mc  3.13.0-49.81
  linux-image-3.13.0-49-powerpc-smp  3.13.0-49.81
  linux-image-3.13.0-49-powerpc64-emb  3.13.0-49.81
  linux-image-3.13.0-49-powerpc64-smp  3.13.0-49.81

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-2563-1
  CVE-2015-1421, CVE-2015-1465, CVE-2015-1593, CVE-2015-2041,
  CVE-2015-2042

Package Information:
  https://launchpad.net/ubuntu/+source/linux/3.13.0-49.81



--WeEJsoDL3bD2dNOImdEsbhfGe7eoNTPTa
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=bSLI
-----END PGP SIGNATURE-----

--WeEJsoDL3bD2dNOImdEsbhfGe7eoNTPTa--


--===============2931486902904759820==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

-- 
ubuntu-security-announce mailing list
ubuntu-security-announce@lists.ubuntu.com
Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce

--===============2931486902904759820==--