USN-3611-1: OpenSSL vulnerability

28 March 2018

openssl vulnerability

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

• Ubuntu 17.10
• Ubuntu 16.04 LTS
• Ubuntu 14.04 LTS

Summary

OpenSSL could be made to crash if it received specially crafted network traffic.

Software Description

• openssl - Secure Socket Layer (SSL) cryptographic library and tools

Details

It was discovered that OpenSSL incorrectly handled certain ASN.1 types. A remote attacker could possibly use this issue to cause a denial of service.

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-1ubuntu13.4

Ubuntu 16.04 LTS

libssl1.0.0 - 1.0.2g-1ubuntu4.11

Ubuntu 14.04 LTS

libssl1.0.0 - 1.0.1f-1ubuntu2.24

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

from Ubuntu Security Notices https://ift.tt/2E2YXHz