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Sicherheit: Mehrere Probleme in Linux
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in Linux
ID: USN-3360-1
Distribution: Ubuntu
Plattformen: Ubuntu 14.04 LTS
Datum: Fr, 21. Juli 2017, 10:52
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1000380
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9900
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-10088
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7895
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7346
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8925
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8967
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8962
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8963
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9605
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8966
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8944
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8924
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8955
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8964

Originalnachricht


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==========================================================================
Ubuntu Security Notice USN-3360-1
July 21, 2017

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 Linux kernel.

Software Description:
- linux: Linux kernel

Details:

It was discovered that the Linux kernel did not properly initialize a Wake-
on-Lan data structure. A local attacker could use this to expose sensitive
information (kernel memory). (CVE-2014-9900)

It was discovered that the Linux kernel did not properly restrict access to
/proc/iomem. A local attacker could use this to expose sensitive
information. (CVE-2015-8944)

It was discovered that a use-after-free vulnerability existed in the
performance events and counters subsystem of the Linux kernel for ARM64. A
local attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2015-8955)

It was discovered that the SCSI generic (sg) driver in the Linux kernel
contained a double-free vulnerability. A local attacker could use this to
cause a denial of service (system crash). (CVE-2015-8962)

Sasha Levin discovered that a race condition existed in the performance
events and counters subsystem of the Linux kernel when handling CPU unplug
events. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2015-8963)

Tilman Schmidt and Sasha Levin discovered a use-after-free condition in the
TTY implementation in the Linux kernel. A local attacker could use this to
expose sensitive information (kernel memory). (CVE-2015-8964)

It was discovered that the fcntl64() system call in the Linux kernel did
not properly set memory limits when returning on 32-bit ARM processors. A
local attacker could use this to gain administrative privileges.
(CVE-2015-8966)

It was discovered that the system call table for ARM 64-bit processors in
the Linux kernel was not write-protected. An attacker could use this in
conjunction with another kernel vulnerability to execute arbitrary code.
(CVE-2015-8967)

It was discovered that the generic SCSI block layer in the Linux kernel did
not properly restrict write operations in certain situations. A local
attacker could use this to cause a denial of service (system crash) or
possibly gain administrative privileges. (CVE-2016-10088)

Alexander Potapenko discovered a race condition in the Advanced Linux Sound
Architecture (ALSA) subsystem in the Linux kernel. A local attacker could
use this to expose sensitive information (kernel memory).
(CVE-2017-1000380)

Li Qiang discovered that the DRM driver for VMware Virtual GPUs in the
Linux kernel did not properly validate some ioctl arguments. A local
attacker could use this to cause a denial of service (system crash).
(CVE-2017-7346)

Tuomas Haanpää and Ari Kauppi discovered that the NFSv2 and NFSv3 server
implementations in the Linux kernel did not properly check for the end of
buffer. A remote attacker could use this to craft requests that cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2017-7895)

It was discovered that an integer underflow existed in the Edgeport USB
Serial Converter device driver of the Linux kernel. An attacker with
physical access could use this to expose sensitive information (kernel
memory). (CVE-2017-8924)

It was discovered that the USB ZyXEL omni.net LCD PLUS driver in the Linux
kernel did not properly perform reference counting. A local attacker could
use this to cause a denial of service (tty exhaustion). (CVE-2017-8925)

Murray McAllister discovered that the DRM driver for VMware Virtual GPUs in
the Linux kernel did not properly initialize memory. A local attacker could
use this to expose sensitive information (kernel memory). (CVE-2017-9605)

Update instructions:

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

Ubuntu 14.04 LTS:
linux-image-3.13.0-125-generic 3.13.0-125.174
linux-image-3.13.0-125-generic-lpae 3.13.0-125.174
linux-image-3.13.0-125-lowlatency 3.13.0-125.174
linux-image-3.13.0-125-powerpc-e500 3.13.0-125.174
linux-image-3.13.0-125-powerpc-e500mc 3.13.0-125.174
linux-image-3.13.0-125-powerpc-smp 3.13.0-125.174
linux-image-3.13.0-125-powerpc64-emb 3.13.0-125.174
linux-image-3.13.0-125-powerpc64-smp 3.13.0-125.174
linux-image-generic 3.13.0.125.135
linux-image-generic-lpae 3.13.0.125.135
linux-image-lowlatency 3.13.0.125.135
linux-image-powerpc-e500 3.13.0.125.135
linux-image-powerpc-e500mc 3.13.0.125.135
linux-image-powerpc-smp 3.13.0.125.135
linux-image-powerpc64-emb 3.13.0.125.135
linux-image-powerpc64-smp 3.13.0.125.135

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://www.ubuntu.com/usn/usn-3360-1
CVE-2014-9900, CVE-2015-8944, CVE-2015-8955, CVE-2015-8962,
CVE-2015-8963, CVE-2015-8964, CVE-2015-8966, CVE-2015-8967,
CVE-2016-10088, CVE-2017-1000380, CVE-2017-7346, CVE-2017-7895,
CVE-2017-8924, CVE-2017-8925, CVE-2017-9605

Package Information:
https://launchpad.net/ubuntu/+source/linux/3.13.0-125.174


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