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Sicherheit: Zwei Probleme in Linux (Aktualisierung)
Aktuelle Meldungen Distributionen
Name: Zwei Probleme in Linux (Aktualisierung)
ID: USN-2829-2
Distribution: Ubuntu
Plattformen: Ubuntu 14.04 LTS
Datum: Fr, 4. Dezember 2015, 20:35
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7872
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5283
Applikationen: Linux
Update von: Zwei Probleme in Linux

Originalnachricht


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==========================================================================
Ubuntu Security Notice USN-2829-2
December 04, 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 the SCTP protocol implementation in the Linux kernel
performed an incorrect sequence of protocol-initialization steps. A local
attacker could use this to cause a denial of service (system crash).
(CVE-2015-5283)

Dmitry Vyukov discovered that the Linux kernel's keyring handler attempted
to garbage collect incompletely instantiated keys. A local unprivileged
attacker could use this to cause a denial of service (system crash).
(CVE-2015-7872)

Update instructions:

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

Ubuntu 14.04 LTS:
linux-image-3.19.0-39-generic 3.19.0-39.44~14.04.1
linux-image-3.19.0-39-generic-lpae 3.19.0-39.44~14.04.1
linux-image-3.19.0-39-lowlatency 3.19.0-39.44~14.04.1
linux-image-3.19.0-39-powerpc-e500mc 3.19.0-39.44~14.04.1
linux-image-3.19.0-39-powerpc-smp 3.19.0-39.44~14.04.1
linux-image-3.19.0-39-powerpc64-emb 3.19.0-39.44~14.04.1
linux-image-3.19.0-39-powerpc64-smp 3.19.0-39.44~14.04.1

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-2829-2
http://www.ubuntu.com/usn/usn-2829-1
CVE-2015-5283, CVE-2015-7872

Package Information:
https://launchpad.net/ubuntu/+source/linux-lts-vivid/3.19.0-39.44~14.04.1


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