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Sicherheit: Mehrere Probleme in Linux
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in Linux
ID: USN-3377-1
Distribution: Ubuntu
Plattformen: Ubuntu 17.04
Datum: Do, 3. August 2017, 21:36
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10810
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7482
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1000365
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7533

Originalnachricht


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==========================================================================
Ubuntu Security Notice USN-3377-1
August 03, 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:

Fan Wu and Shixiong Zhao discovered a race condition between inotify events
and vfs rename operations in the Linux kernel. An unprivileged local
attacker could use this to cause a denial of service (system crash) or
execute arbitrary code. (CVE-2017-7533)

It was discovered that the Linux kernel did not properly restrict
RLIMIT_STACK size. A local attacker could use this in conjunction with
another vulnerability to possibly execute arbitrary code.
(CVE-2017-1000365)

李区 discovered that the Virtio GPU driver in the Linux kernel did not
properly free memory in some situations. A local attacker could use this to
cause a denial of service (memory consumption). (CVE-2017-10810)

石磊 discovered that the RxRPC Kerberos 5 ticket handling code in the
Linux kernel did not properly verify metadata. A remote attacker could use
this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2017-7482)

Update instructions:

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

Ubuntu 17.04:
linux-image-4.10.0-1013-raspi2 4.10.0-1013.16
linux-image-4.10.0-30-generic 4.10.0-30.34
linux-image-4.10.0-30-generic-lpae 4.10.0-30.34
linux-image-4.10.0-30-lowlatency 4.10.0-30.34
linux-image-generic 4.10.0.30.31
linux-image-generic-lpae 4.10.0.30.31
linux-image-lowlatency 4.10.0.30.31
linux-image-raspi2 4.10.0.1013.15

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-3377-1
CVE-2017-1000365, CVE-2017-10810, CVE-2017-7482, CVE-2017-7533

Package Information:
https://launchpad.net/ubuntu/+source/linux/4.10.0-30.34
https://launchpad.net/ubuntu/+source/linux-raspi2/4.10.0-1013.16


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