USN-4243-1: libbsd vulnerabilities

USN-4243-1: libbsd vulnerabilities

libbsd vulnerabilities

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

  • Ubuntu 19.04
  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 ESM
  • Ubuntu 12.04 ESM

Summary

Several security issues were fixed in libbsd.

Software Description

  • libbsd – utility functions from BSD systems – development files

Details

It was discovered that libbsd incorrectly handled certain inputs.
An attacker could possibly use this issue to execute arbitrary code.
This issue only affected Ubuntu 14.04 ESM. (CVE-2016-2090)

It was discovered that libbsd incorrectly handled certain strings.
An attacker could possibly use this issue to access sensitive information.
(CVE-2019-20367)

Update instructions

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

Ubuntu 19.04
libbsd00.9.1-2ubuntu0.1
Ubuntu 18.04 LTS
libbsd00.8.7-1ubuntu0.1
Ubuntu 16.04 LTS
libbsd00.8.2-1ubuntu0.1
Ubuntu 14.04 ESM
libbsd0 – 0.6.0-2ubuntu1+esm1
Ubuntu 12.04 ESM
libbsd0 – 0.3.0-2ubuntu0.1

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

In general, a standard system update will make all the necessary changes.

References

Source: USN-4243-1: libbsd vulnerabilities

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