Exploit the possiblities

Ubuntu Security Notice USN-3138-1

Ubuntu Security Notice USN-3138-1
Posted Nov 28, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3138-1 - Markus Doering discovered that python-cryptography incorrectly handled certain HKDF lengths. This could result in python-cryptography returning an empty string instead of the expected derived key.

tags | advisory, python
systems | linux, ubuntu
advisories | CVE-2016-9243
MD5 | 7af8fd9033167a619d1f40c7d195fbcb

Ubuntu Security Notice USN-3138-1

Change Mirror Download

===========================================================================
Ubuntu Security Notice USN-3138-1
November 28, 2016

python-cryptography vulnerability
===========================================================================

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

- Ubuntu 16.10
- Ubuntu 16.04 LTS

Summary:

python-cryptography could generate incorrect keys.

Software Description:
- python-cryptography: Cryptography Python library

Details:

Markus D=C3=B6ring discovered that python-cryptography incorrectly handled
certain HKDF lengths. This could result in python-cryptography returning an
empty string instead of the expected derived key.

Update instructions:

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

Ubuntu 16.10:
python-cryptography 1.5-2ubuntu0.1
python3-cryptography 1.5-2ubuntu0.1

Ubuntu 16.04 LTS:
python-cryptography 1.2.3-1ubuntu0.1
python3-cryptography 1.2.3-1ubuntu0.1

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

References:
http://www.ubuntu.com/usn/usn-3138-1
CVE-2016-9243

Package Information:
https://launchpad.net/ubuntu/+source/python-cryptography/1.5-2ubuntu0.1
https://launchpad.net/ubuntu/+source/python-cryptography/1.2.3-1ubuntu0.1



Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

Want To Donate?


Bitcoin: 18PFeCVLwpmaBuQqd5xAYZ8bZdvbyEWMmU

File Archive:

February 2018

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Feb 1st
    15 Files
  • 2
    Feb 2nd
    15 Files
  • 3
    Feb 3rd
    15 Files
  • 4
    Feb 4th
    13 Files
  • 5
    Feb 5th
    16 Files
  • 6
    Feb 6th
    15 Files
  • 7
    Feb 7th
    15 Files
  • 8
    Feb 8th
    15 Files
  • 9
    Feb 9th
    18 Files
  • 10
    Feb 10th
    8 Files
  • 11
    Feb 11th
    8 Files
  • 12
    Feb 12th
    17 Files
  • 13
    Feb 13th
    15 Files
  • 14
    Feb 14th
    15 Files
  • 15
    Feb 15th
    17 Files
  • 16
    Feb 16th
    18 Files
  • 17
    Feb 17th
    37 Files
  • 18
    Feb 18th
    2 Files
  • 19
    Feb 19th
    16 Files
  • 20
    Feb 20th
    11 Files
  • 21
    Feb 21st
    3 Files
  • 22
    Feb 22nd
    0 Files
  • 23
    Feb 23rd
    0 Files
  • 24
    Feb 24th
    0 Files
  • 25
    Feb 25th
    0 Files
  • 26
    Feb 26th
    0 Files
  • 27
    Feb 27th
    0 Files
  • 28
    Feb 28th
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2018 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close