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Sicherheit: Zwei Probleme in Linux
Aktuelle Meldungen Distributionen
Name: Zwei Probleme in Linux
ID: USN-3419-1
Distribution: Ubuntu
Plattformen: Ubuntu 17.04
Datum: Di, 19. September 2017, 06:57
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1000251
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7541

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==========================================================================
Ubuntu Security Notice USN-3419-1
September 18, 2017

linux, linux-raspi2 vulnerabilities
==========================================================================

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

- Ubuntu 17.04

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux: Linux kernel
- linux-raspi2: Linux kernel for Raspberry Pi 2

Details:

It was discovered that a buffer overflow existed in the Bluetooth stack of
the Linux kernel when handling L2CAP configuration responses. A physically
proximate attacker could use this to cause a denial of service (system
crash). (CVE-2017-1000251)

It was discovered that a buffer overflow existed in the Broadcom FullMAC
WLAN driver in the Linux kernel. A local attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2017-7541)

Update instructions:

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

Ubuntu 17.04:
linux-image-4.10.0-1018-raspi2 4.10.0-1018.21
linux-image-4.10.0-35-generic 4.10.0-35.39
linux-image-4.10.0-35-generic-lpae 4.10.0-35.39
linux-image-4.10.0-35-lowlatency 4.10.0-35.39
linux-image-generic 4.10.0.35.35
linux-image-generic-lpae 4.10.0.35.35
linux-image-lowlatency 4.10.0.35.35
linux-image-raspi2 4.10.0.1018.19

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-3419-1
CVE-2017-1000251, CVE-2017-7541

Package Information:
https://launchpad.net/ubuntu/+source/linux/4.10.0-35.39
https://launchpad.net/ubuntu/+source/linux-raspi2/4.10.0-1018.21


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