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Sicherheit: Zwei Probleme in Linux
Aktuelle Meldungen Distributionen
Name: Zwei Probleme in Linux
ID: USN-2798-1
Distribution: Ubuntu
Plattformen: Ubuntu 14.04 LTS
Datum: Do, 5. November 2015, 20:29
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5257
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2925
Applikationen: Linux

Originalnachricht


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==========================================================================
Ubuntu Security Notice USN-2798-1
November 05, 2015

linux-lts-vivid vulnerabilities
==========================================================================

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

- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in the kernel.

Software Description:
- linux-lts-vivid: Linux hardware enablement kernel from Vivid

Details:

It was discovered that in certain situations, a directory could be renamed
outside of a bind mounted location. An attacker could use this to escape
bind mount containment and gain access to sensitive information.
(CVE-2015-2925)

Moein Ghasemzadeh discovered that the USB WhiteHEAT serial driver contained
hardcoded attributes about the USB devices. An attacker could construct a
fake WhiteHEAT USB device that, when inserted, causes a denial of service
(system crash). (CVE-2015-5257)

Update instructions:

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

Ubuntu 14.04 LTS:
linux-image-3.19.0-32-generic 3.19.0-32.37~14.04.1
linux-image-3.19.0-32-generic-lpae 3.19.0-32.37~14.04.1
linux-image-3.19.0-32-lowlatency 3.19.0-32.37~14.04.1
linux-image-3.19.0-32-powerpc-e500mc 3.19.0-32.37~14.04.1
linux-image-3.19.0-32-powerpc-smp 3.19.0-32.37~14.04.1
linux-image-3.19.0-32-powerpc64-emb 3.19.0-32.37~14.04.1
linux-image-3.19.0-32-powerpc64-smp 3.19.0-32.37~14.04.1

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. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-generic,
linux-server, linux-powerpc), a standard system upgrade will automatically
perform this as well.

References:
http://www.ubuntu.com/usn/usn-2798-1
CVE-2015-2925, CVE-2015-5257

Package Information:
https://launchpad.net/ubuntu/+source/linux-lts-vivid/3.19.0-32.37~14.04.1


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