openssl, openssl1.0 vulnerability

27 February 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

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

• CVE-2019-1559