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Sicherheit: Mehrere Probleme in Linux (Aktualisierung)
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in Linux (Aktualisierung)
ID: USN-3822-2
Distribution: Ubuntu
Plattformen: Ubuntu 12.04 ESM
Datum: Do, 15. November 2018, 08:01
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-9363
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13168
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-16649
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16658
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9588
Applikationen: Linux
Update von: Mehrere Probleme in Linux

Originalnachricht


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==========================================================================
Ubuntu Security Notice USN-3822-2
November 14, 2018

linux-lts-trusty vulnerabilities
==========================================================================

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

- Ubuntu 12.04 ESM

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-lts-trusty: Linux hardware enablement kernel from Trusty for Precise
ESM

Details:

USN-3822-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04
LTS. This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 14.04 LTS for Ubuntu
12.04 ESM.

Jim Mattson discovered that the KVM implementation in the Linux kernel
mismanages the #BP and #OF exceptions. A local attacker in a guest virtual
machine could use this to cause a denial of service (guest OS crash).
(CVE-2016-9588)

It was discovered that the generic SCSI driver in the Linux kernel did not
properly enforce permissions on kernel memory access. A local attacker
could use this to expose sensitive information or possibly elevate
privileges. (CVE-2017-13168)

Andrey Konovalov discovered that the CDC USB Ethernet driver did not
properly validate device descriptors. A physically proximate attacker could
use this to cause a denial of service (system crash). (CVE-2017-16649)

It was discovered that an integer overflow existed in the CD-ROM driver of
the Linux kernel. A local attacker could use this to expose sensitive
information (kernel memory). (CVE-2018-16658)

It was discovered that an integer overflow existed in the HID Bluetooth
implementation in the Linux kernel that could lead to a buffer overwrite.
An attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2018-9363)

Update instructions:

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

Ubuntu 12.04 ESM:
linux-image-3.13.0-162-generic 3.13.0-162.212~precise1
linux-image-3.13.0-162-generic-lpae 3.13.0-162.212~precise1
linux-image-generic-lpae-lts-trusty 3.13.0.162.152
linux-image-generic-lts-trusty 3.13.0.162.152

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://usn.ubuntu.com/usn/usn-3822-2
https://usn.ubuntu.com/usn/usn-3822-1
CVE-2016-9588, CVE-2017-13168, CVE-2017-16649, CVE-2018-16658,
CVE-2018-9363


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