[USN-3817-1] Python vulnerabilities

---------- Forwarded message ---------
From: Marc Deslauriers
Date: 2018年11月14日 週三 上午1:03

Summary:

Several security issues were fixed in Python.

Software Description:
- python2.7: An interactive high-level object-oriented language
- python3.5: An interactive high-level object-oriented language
- python3.4: An interactive high-level object-oriented language

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. This issue only
affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (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. This issue only affected
Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (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)

References:
  https://usn.ubuntu.com/usn/usn-3817-1
  CVE-2018-1000030, CVE-2018-1000802, CVE-2018-1060, CVE-2018-1061,
  CVE-2018-14647