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USN-3817-2: Python vulnerabilities

15 November 2018

Several security issues were fixed in Python.

Releases

Packages

  • python2.7 - An interactive high-level object-oriented language

Details

USN-3817-1 fixed a vulnerability in Python. This update provides
the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

It was discovered that Python incorrectly handled large amounts of data. A
remote attacker could use this issue to cause Python to crash, resulting in
a denial of service, or possibly execute arbitrary code. (CVE-2018-1000030)

It was discovered that Python incorrectly handled running external commands
in the shutil module. A remote attacker could use this issue to cause
Python to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2018-1000802)

It was discovered that Python incorrectly used regular expressions
vulnerable to catastrophic backtracking. A remote attacker could possibly
use this issue to cause a denial of service. (CVE-2018-1060, CVE-2018-1061)

It was discovered that Python failed to initialize Expat's hash salt. A
remote attacker could possibly use this issue to cause hash collisions,
leading to a denial of service. (CVE-2018-14647)

Update instructions

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

Ubuntu 12.04

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

Related notices

  • USN-3817-1: python3.4-minimal, libpython3.5-testsuite, python2.7-examples, libpython3.5-stdlib, libpython2.7-minimal, python2.7, idle-python3.5, python3.4-venv, libpython3.4-testsuite, python2.7-doc, python3.4-examples, python3.5, libpython2.7, python3.5-examples, libpython2.7-stdlib, python3.5-dev, libpython2.7-dev, libpython2.7-testsuite, python3.5-doc, libpython3.4, python3.4, python3.4-doc, python3.5-minimal, python3.5-venv, python3.4-dev, python2.7-dev, libpython3.4-minimal, libpython3.4-stdlib, libpython3.5-dev, libpython3.5, libpython3.5-minimal, python2.7-minimal, libpython3.4-dev, idle-python2.7, idle-python3.4