--===============0851736024988349858==
Content-Type: multipart/signed; micalg=pgp-sha512;
	protocol="application/pgp-signature";
 boundary="CE+1k2dSO48ffgeK"
Content-Disposition: inline


--CE+1k2dSO48ffgeK
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

==========================================================================
Ubuntu Security Notice USN-4031-1
June 24, 2019

linux, linux-hwe vulnerability
==========================================================================

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

- Ubuntu 19.04
- Ubuntu 18.10
- Ubuntu 18.04 LTS

Summary:

64-Bit PowerPC systems could be made to expose sensitive information.

Software Description:
- linux: Linux kernel
- linux-hwe: Linux hardware enablement (HWE) kernel

Details:

It was discovered that the Linux kernel did not properly separate certain
memory mappings when creating new userspace processes on 64-bit Power
(ppc64el) systems. A local attacker could use this to access memory
contents or cause memory corruption of other processes on the system.

Update instructions:

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

Ubuntu 19.04:
  linux-image-5.0.0-19-generic    5.0.0-19.20
  linux-image-generic             5.0.0.19.20
  linux-image-virtual             5.0.0.19.20

Ubuntu 18.10:
  linux-image-4.18.0-24-generic   4.18.0-24.25
  linux-image-generic             4.18.0.24.25
  linux-image-powerpc-e500mc      4.18.0.24.25
  linux-image-powerpc-smp         4.18.0.24.25
  linux-image-powerpc64-emb       4.18.0.24.25
  linux-image-powerpc64-smp       4.18.0.24.25
  linux-image-virtual             4.18.0.24.25

Ubuntu 18.04 LTS:
  linux-image-4.18.0-24-generic   4.18.0-24.25~18.04.1
  linux-image-generic-hwe-18.04   4.18.0.24.74
  linux-image-virtual-hwe-18.04   4.18.0.24.74

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.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References:
  https://usn.ubuntu.com/4031-1
  CVE-2019-12817

Package Information:
  https://launchpad.net/ubuntu/+source/linux/5.0.0-19.20
  https://launchpad.net/ubuntu/+source/linux/4.18.0-24.25
  https://launchpad.net/ubuntu/+source/linux-hwe/4.18.0-24.25~18.04.1


--CE+1k2dSO48ffgeK
Content-Type: application/pgp-signature; name="signature.asc"

-----BEGIN PGP SIGNATURE-----
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=lpYV
-----END PGP SIGNATURE-----

--CE+1k2dSO48ffgeK--


--===============0851736024988349858==
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: base64
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