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Sigurnosni nedostatak programskog paketa NLTK

==========================================================================
Ubuntu Security Notice USN-4106-1
August 20, 2019

NLTK vulnerability
==========================================================================

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

– Ubuntu 19.04
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS

Summary:

NLTK could be made to overwrite files.

Software Description:
– nltk: Python libraries for natural language processing

Details:

Mike Salvatore discovered that NLTK mishandled crafted ZIP archives during
extraction. A remote attacker could use this vulnerability to write
arbitrary files to the filesystem

Update instructions:

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

Ubuntu 19.04:
python-nltk 3.4-1ubuntu0.1
python3-nltk 3.4-1ubuntu0.1

Ubuntu 18.04 LTS:
python-nltk 3.2.5-1ubuntu0.1
python3-nltk 3.2.5-1ubuntu0.1

Ubuntu 16.04 LTS:
python-nltk 3.1-1ubuntu0.1
python3-nltk 3.1-1ubuntu0.1

In general, a standard system update will make all the necessary changes.

References:
https://usn.ubuntu.com/4106-1
CVE-2019-14751

Package Information:
https://launchpad.net/ubuntu/+source/nltk/3.4-1ubuntu0.1
https://launchpad.net/ubuntu/+source/nltk/3.2.5-1ubuntu0.1
https://launchpad.net/ubuntu/+source/nltk/3.1-1ubuntu0.1

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