Login
Login-Name Passwort


 
Newsletter
Werbung

Sicherheit: Zwei Probleme in Linux
Aktuelle Meldungen Distributionen
Name: Zwei Probleme in Linux
ID: USN-2978-1
Distribution: Ubuntu
Plattformen: Ubuntu 15.10
Datum: Di, 17. Mai 2016, 07:15
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3713
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0758

Originalnachricht


--===============8726768441388289132==
Content-Type: multipart/signed; micalg=pgp-sha512;
protocol="application/pgp-signature";
boundary="LQFJYnjHKDAbJRTQ"
Content-Disposition: inline


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

==========================================================================
Ubuntu Security Notice USN-2978-1
May 16, 2016

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

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

- Ubuntu 15.10

Summary:

Several security issues were fixed in the kernel.

Software Description:
- linux: Linux kernel

Details:

David Matlack discovered that the Kernel-based Virtual Machine (KVM)
implementation in the Linux kernel did not properly restrict variable
Memory Type Range Registers (MTRR) in KVM guests. A privileged user in a
guest VM could use this to cause a denial of service (system crash) in the
host, expose sensitive information from the host, or possibly gain
administrative privileges in the host. (CVE-2016-3713)

Philip Pettersson discovered that the Linux kernel's ASN.1 DER decoder did
not properly process certificate files with tags of indefinite length. A
local unprivileged attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code with administrative
privileges. (CVE-2016-0758)

Update instructions:

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

Ubuntu 15.10:
linux-image-4.2.0-36-generic 4.2.0-36.42
linux-image-4.2.0-36-generic-lpae 4.2.0-36.42
linux-image-4.2.0-36-lowlatency 4.2.0-36.42
linux-image-4.2.0-36-powerpc-e500mc 4.2.0-36.42
linux-image-4.2.0-36-powerpc-smp 4.2.0-36.42
linux-image-4.2.0-36-powerpc64-emb 4.2.0-36.42
linux-image-4.2.0-36-powerpc64-smp 4.2.0-36.42

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:
http://www.ubuntu.com/usn/usn-2978-1
CVE-2016-0758, CVE-2016-3713

Package Information:
https://launchpad.net/ubuntu/+source/linux/4.2.0-36.42


--LQFJYnjHKDAbJRTQ
Content-Type: application/pgp-signature; name="signature.asc"

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

--LQFJYnjHKDAbJRTQ--


--===============8726768441388289132==
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

--===============8726768441388289132==--
Pro-Linux
Traut euch!
Neue Nachrichten
Werbung