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Sicherheit: Ausführen beliebiger Kommandos in Linux
Aktuelle Meldungen Distributionen
Name: Ausführen beliebiger Kommandos in Linux
ID: USN-2596-1
Distribution: Ubuntu
Plattformen: Ubuntu 12.04 LTS
Datum: Mi, 6. Mai 2015, 06:31
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3339

Originalnachricht

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==========================================================================
Ubuntu Security Notice USN-2596-1
May 05, 2015

linux vulnerability
==========================================================================

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

- Ubuntu 12.04 LTS

Summary:

The system could be made to run programs as an administrator.

Software Description:
- linux: Linux kernel

Details:

A race condition between chown() and execve() was discovered in the Linux
kernel. A local attacker could exploit this race by using chown on a
setuid-user-binary to gain administrative privileges.

Update instructions:

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

Ubuntu 12.04 LTS:
linux-image-3.2.0-83-generic 3.2.0-83.120
linux-image-3.2.0-83-generic-pae 3.2.0-83.120
linux-image-3.2.0-83-highbank 3.2.0-83.120
linux-image-3.2.0-83-omap 3.2.0-83.120
linux-image-3.2.0-83-powerpc-smp 3.2.0-83.120
linux-image-3.2.0-83-powerpc64-smp 3.2.0-83.120
linux-image-3.2.0-83-virtual 3.2.0-83.120

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-2596-1
CVE-2015-3339

Package Information:
https://launchpad.net/ubuntu/+source/linux/3.2.0-83.120



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