OpenSSL Update for Ubuntu
Posted on: 11/07/2017 06:57 AM

Updated OpenSSL packages has been released for Ubuntu Linux

OpenSSL Update for Ubuntu

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


Several security issues were fixed in OpenSSL.

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


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.

CVE-2017-3735, CVE-2017-3736

Package Information:

Printed from Linux Compatible (