[USN-3628-2] OpenSSL vulnerability

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[USN-3628-2] OpenSSL vulnerability

Leonidas S. Barbosa
Ubuntu Security Notice USN-3628-2
April 19, 2018

openssl vulnerability

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

- Ubuntu 12.04 ESM


OpenSSL could allow access to sensitve information.

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


USN-3628-1 fixed a vulnerability in OpenSSL. This update provides
the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

 Alejandro Cabrera Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis
 Manuel Alvarez Tapia discovered that OpenSSL incorrectly handled RSA
 key generation. An attacker could possibly use this issue to perform a
 cache-timing attack and recover private RSA keys.

Update instructions:

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

Ubuntu 12.04 ESM:
  libssl1.0.0                     1.0.1-4ubuntu5.41

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

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