USN-3899-1: OpenSSL vulnerability
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.
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