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Sicherheit: Zwei Probleme in Linux
Aktuelle Meldungen Distributionen
Name: Zwei Probleme in Linux
ID: USN-2826-1
Distribution: Ubuntu
Plattformen: Ubuntu 12.04 LTS
Datum: Do, 3. Dezember 2015, 11:31
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

Originalnachricht


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==========================================================================
Ubuntu Security Notice USN-2826-1
December 03, 2015

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

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

- Ubuntu 12.04 LTS

Summary:

Several security issues were fixed in the kernel.

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

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 12.04 LTS:
linux-image-3.13.0-71-generic 3.13.0-71.114~precise1
linux-image-3.13.0-71-generic-lpae 3.13.0-71.114~precise1

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-2826-1
CVE-2015-5283, CVE-2015-7872

Package Information:
https://launchpad.net/ubuntu/+source/linux-lts-trusty/3.13.0-71.114~precise1


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