Twenty Year Anniversary

Ubuntu Security Notice USN-3475-1

Ubuntu Security Notice USN-3475-1
Posted Nov 6, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3475-1 - It was discovered that OpenSSL incorrectly parsed the IPAddressFamily extension in X.509 certificates, resulting in an erroneous display of the certificate in text format. It was discovered that OpenSSL incorrectly performed the x86_64 Montgomery squaring procedure. While unlikely, a remote attacker could possibly use this issue to recover private keys. This issue only applied to Ubuntu 16.04 LTS, Ubuntu 16.10 and Ubuntu 17.04. Various other issues were also addressed.

tags | advisory, remote
systems | linux, ubuntu
advisories | CVE-2017-3735, CVE-2017-3736
MD5 | 0c64cb5d962437f833874411911c027a

Ubuntu Security Notice USN-3475-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-3475-1
November 06, 2017

openssl vulnerabilities
==========================================================================

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

- Ubuntu 17.10
- Ubuntu 17.04
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in OpenSSL.

Software Description:
- openssl: Secure Socket Layer (SSL) cryptographic library and tools

Details:

It was discovered that OpenSSL incorrectly parsed the IPAddressFamily
extension in X.509 certificates, resulting in an erroneous display of the
certificate in text format. (CVE-2017-3735)

It was discovered that OpenSSL incorrectly performed the x86_64 Montgomery
squaring procedure. While unlikely, a remote attacker could possibly use
this issue to recover private keys. This issue only applied to Ubuntu 16.04
LTS, Ubuntu 16.10 and Ubuntu 17.04. (CVE-2017-3736)

Update instructions:

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

Ubuntu 17.10:
libssl1.0.0 1.0.2g-1ubuntu13.2

Ubuntu 17.04:
libssl1.0.0 1.0.2g-1ubuntu11.3

Ubuntu 16.04 LTS:
libssl1.0.0 1.0.2g-1ubuntu4.9

Ubuntu 14.04 LTS:
libssl1.0.0 1.0.1f-1ubuntu2.23

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
https://www.ubuntu.com/usn/usn-3475-1
CVE-2017-3735, CVE-2017-3736

Package Information:
https://launchpad.net/ubuntu/+source/openssl/1.0.2g-1ubuntu13.2
https://launchpad.net/ubuntu/+source/openssl/1.0.2g-1ubuntu11.3
https://launchpad.net/ubuntu/+source/openssl/1.0.2g-1ubuntu4.9
https://launchpad.net/ubuntu/+source/openssl/1.0.1f-1ubuntu2.23


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:

July 2018

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Jul 1st
    1 Files
  • 2
    Jul 2nd
    26 Files
  • 3
    Jul 3rd
    15 Files
  • 4
    Jul 4th
    11 Files
  • 5
    Jul 5th
    13 Files
  • 6
    Jul 6th
    4 Files
  • 7
    Jul 7th
    4 Files
  • 8
    Jul 8th
    1 Files
  • 9
    Jul 9th
    16 Files
  • 10
    Jul 10th
    15 Files
  • 11
    Jul 11th
    32 Files
  • 12
    Jul 12th
    22 Files
  • 13
    Jul 13th
    15 Files
  • 14
    Jul 14th
    1 Files
  • 15
    Jul 15th
    1 Files
  • 16
    Jul 16th
    21 Files
  • 17
    Jul 17th
    15 Files
  • 18
    Jul 18th
    15 Files
  • 19
    Jul 19th
    17 Files
  • 20
    Jul 20th
    11 Files
  • 21
    Jul 21st
    1 Files
  • 22
    Jul 22nd
    1 Files
  • 23
    Jul 23rd
    0 Files
  • 24
    Jul 24th
    0 Files
  • 25
    Jul 25th
    0 Files
  • 26
    Jul 26th
    0 Files
  • 27
    Jul 27th
    0 Files
  • 28
    Jul 28th
    0 Files
  • 29
    Jul 29th
    0 Files
  • 30
    Jul 30th
    0 Files
  • 31
    Jul 31st
    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