Login
Newsletter
Werbung

Sicherheit: Mehrere Probleme in Linux
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in Linux
ID: USN-2779-1
Distribution: Ubuntu
Plattformen: Ubuntu 15.04
Datum: Di, 20. Oktober 2015, 22:48
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5156
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0272
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6937
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7312
Applikationen: Linux

Originalnachricht


--===============3133605139272480779==
Content-Type: multipart/signed; micalg=pgp-sha512;
protocol="application/pgp-signature";
boundary="b6Y3a1uK/7FdRsLm"
Content-Disposition: inline


--b6Y3a1uK/7FdRsLm
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inlin
Content-Transfer-Encoding: quoted-printable

==========================================================================
Ubuntu Security Notice USN-2779-1
October 20, 2015

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

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

- Ubuntu 15.04

Summary:

Several security issues were fixed in the kernel.

Software Description:
- linux: Linux kernel

Details:

It was discovered that the Linux kernel did not check if a new IPv6 MTU set
by a user space application was valid. A remote attacker could forge a
route advertisement with an invalid MTU that a user space daemon like
NetworkManager would honor and apply to the kernel, causing a denial of
service. (CVE-2015-0272)

It was discovered that virtio networking in the Linux kernel did not handle
fragments correctly, leading to kernel memory corruption. A remote attacker
could use this to cause a denial of service (system crash) or possibly
execute code with administrative privileges. (CVE-2015-5156)

It was discovered that the Reliable Datagram Sockets (RDS) implementation
in the Linux kernel did not verify sockets were properly bound before
attempting to send a message, which could cause a NULL pointer dereference.
An attacker could use this to cause a denial of service (system crash).
(CVE-2015-6937)

Ben Hutchings discovered that the Advanced Union Filesystem (aufs) for the
Linux kernel did not correctly handle references of memory mapped files
from an aufs mount. A local attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code with
administrative privileges. (CVE-2015-7312)

Update instructions:

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

Ubuntu 15.04:
linux-image-3.19.0-31-generic 3.19.0-31.36
linux-image-3.19.0-31-generic-lpae 3.19.0-31.36
linux-image-3.19.0-31-lowlatency 3.19.0-31.36
linux-image-3.19.0-31-powerpc-e500mc 3.19.0-31.36
linux-image-3.19.0-31-powerpc-smp 3.19.0-31.36
linux-image-3.19.0-31-powerpc64-emb 3.19.0-31.36
linux-image-3.19.0-31-powerpc64-smp 3.19.0-31.36

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-2779-1
CVE-2015-0272, CVE-2015-5156, CVE-2015-6937, CVE-2015-7312

Package Information:
https://launchpad.net/ubuntu/+source/linux/3.19.0-31.36


--b6Y3a1uK/7FdRsLm
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: Digital signature

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=kVJ4
-----END PGP SIGNATURE-----

--b6Y3a1uK/7FdRsLm--


--===============3133605139272480779==
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

--===============3133605139272480779==--
Pro-Linux
Pro-Linux @Facebook
Neue Nachrichten
Werbung