==========================================================================
Ubuntu Security Notice USN-3899-1
February 27, 2019
openssl, openssl1.0 vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 18.10
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS
Summary:
OpenSSL could be made to expose sensitive information over the network.
Software Description:
– openssl1.0: Secure Socket Layer (SSL) cryptographic library and tools
– openssl: Secure Socket Layer (SSL) cryptographic library and tools
Details:
Juraj Somorovsky, Robert Merget, and Nimrod Aviram discovered that certain
applications incorrectly used OpenSSL and could be exposed to a padding
oracle attack. A remote attacker could possibly use this issue to decrypt
data.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 18.10:
libssl1.0.0 1.0.2n-1ubuntu6.2
Ubuntu 18.04 LTS:
libssl1.0.0 1.0.2n-1ubuntu5.3
Ubuntu 16.04 LTS:
libssl1.0.0 1.0.2g-1ubuntu4.15
After a standard system update you need to reboot your computer to make
all the necessary changes.
References:
https://usn.ubuntu.com/usn/usn-3899-1
CVE-2019-1559
Package Information:
https://launchpad.net/ubuntu/+source/openssl1.0/1.0.2n-1ubuntu6.2
https://launchpad.net/ubuntu/+source/openssl1.0/1.0.2n-1ubuntu5.3
https://launchpad.net/ubuntu/+source/openssl/1.0.2g-1ubuntu4.15
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