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Sicherheit: Zwei Probleme in Linux
Aktuelle Meldungen Distributionen
Name: Zwei Probleme in Linux
ID: USN-3385-1
Distribution: Ubuntu
Plattformen: Ubuntu 16.04 LTS
Datum: Fr, 11. August 2017, 06:50
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1000112
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1000111

Originalnachricht


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==========================================================================
Ubuntu Security Notice USN-3385-1
August 11, 2017

linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon vulnerabilities
==========================================================================

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

- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux: Linux kernel
- linux-aws: Linux kernel for Amazon Web Services (AWS) systems
- linux-gke: Linux kernel for Google Container Engine (GKE) systems
- linux-raspi2: Linux kernel for Raspberry Pi 2
- linux-snapdragon: Linux kernel for Snapdragon processors

Details:

Andrey Konovalov discovered a race condition in the UDP Fragmentation
Offload (UFO) code in the Linux kernel. A local attacker could use this to
cause a denial of service or execute arbitrary code. (CVE-2017-1000112)

Andrey Konovalov discovered a race condition in AF_PACKET socket option
handling code in the Linux kernel. A local unprivileged attacker could use
this to cause a denial of service or possibly execute arbitrary code.
(CVE-2017-1000111)

Update instructions:

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

Ubuntu 16.04 LTS:
linux-image-4.4.0-1026-gke 4.4.0-1026.26
linux-image-4.4.0-1030-aws 4.4.0-1030.39
linux-image-4.4.0-1069-raspi2 4.4.0-1069.77
linux-image-4.4.0-1071-snapdragon 4.4.0-1071.76
linux-image-4.4.0-91-generic 4.4.0-91.114
linux-image-4.4.0-91-generic-lpae 4.4.0-91.114
linux-image-4.4.0-91-lowlatency 4.4.0-91.114
linux-image-4.4.0-91-powerpc-e500mc 4.4.0-91.114
linux-image-4.4.0-91-powerpc-smp 4.4.0-91.114
linux-image-4.4.0-91-powerpc64-emb 4.4.0-91.114
linux-image-4.4.0-91-powerpc64-smp 4.4.0-91.114
linux-image-aws 4.4.0.1030.32
linux-image-generic 4.4.0.91.96
linux-image-generic-lpae 4.4.0.91.96
linux-image-gke 4.4.0.1026.27
linux-image-lowlatency 4.4.0.91.96
linux-image-powerpc-e500mc 4.4.0.91.96
linux-image-powerpc-smp 4.4.0.91.96
linux-image-powerpc64-emb 4.4.0.91.96
linux-image-powerpc64-smp 4.4.0.91.96
linux-image-raspi2 4.4.0.1069.69
linux-image-snapdragon 4.4.0.1071.63

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-3385-1
CVE-2017-1000111, CVE-2017-1000112

Package Information:
https://launchpad.net/ubuntu/+source/linux/4.4.0-91.114
https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1030.39
https://launchpad.net/ubuntu/+source/linux-gke/4.4.0-1026.26
https://launchpad.net/ubuntu/+source/linux-raspi2/4.4.0-1069.77
https://launchpad.net/ubuntu/+source/linux-snapdragon/4.4.0-1071.76


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