Login
Newsletter
Werbung

Sicherheit: Denial of Service in Linux
Aktuelle Meldungen Distributionen
Name: Denial of Service in Linux
ID: USN-2806-1
Distribution: Ubuntu
Plattformen: Ubuntu 14.04 LTS
Datum: Di, 10. November 2015, 07:17
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5307
Applikationen: Linux

Originalnachricht


--===============1130187379947172575==
Content-Type: multipart/signed; micalg=pgp-sha512;
protocol="application/pgp-signature";
boundary="vSsTm1kUtxIHoa7M"
Content-Disposition: inline


--vSsTm1kUtxIHoa7M
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

==========================================================================
Ubuntu Security Notice USN-2806-1
November 10, 2015

linux-lts-vivid vulnerability
==========================================================================

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

- Ubuntu 14.04 LTS

Summary:

The system could be made to crash under certain conditions.

Software Description:
- linux-lts-vivid: Linux hardware enablement kernel from Vivid

Details:

Ben Serebrin discovered that the KVM hypervisor implementation in the Linux
kernel did not properly catch Alignment Check exceptions. An attacker in a
guest virtual machine could use this to cause a denial of service (system
crash) in the host OS.

Update instructions:

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

Ubuntu 14.04 LTS:
linux-image-3.19.0-33-generic 3.19.0-33.38~14.04.1
linux-image-3.19.0-33-generic-lpae 3.19.0-33.38~14.04.1
linux-image-3.19.0-33-lowlatency 3.19.0-33.38~14.04.1
linux-image-3.19.0-33-powerpc-e500mc 3.19.0-33.38~14.04.1
linux-image-3.19.0-33-powerpc-smp 3.19.0-33.38~14.04.1
linux-image-3.19.0-33-powerpc64-emb 3.19.0-33.38~14.04.1
linux-image-3.19.0-33-powerpc64-smp 3.19.0-33.38~14.04.1

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-2806-1
CVE-2015-5307

Package Information:
https://launchpad.net/ubuntu/+source/linux-lts-vivid/3.19.0-33.38~14.04.1


--vSsTm1kUtxIHoa7M
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: Digital signature

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=Q9Fv
-----END PGP SIGNATURE-----

--vSsTm1kUtxIHoa7M--


--===============1130187379947172575==
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

--===============1130187379947172575==--
Pro-Linux
Pro-Linux @Facebook
Neue Nachrichten
Werbung