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Ubuntu 14.04, 12.04: USN-4058-2 High: Bash Execution Control Issue

ubuntu
Calendar Grey August 5, 2019
Dist Ubuntu Esm H88
Debian Security Advisory DSA-4931-1 resolves a Python issue impacting server configurations in legacy releases.
A system hardening measure could be bypassed.

Summary

A system hardening measure could be bypassed.

Software Description:

- bash: GNU Bourne Again SHell

Details:

USN-4058-1 fixed a vulnerability in bash. This update provides

the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that Bash incorrectly handled the restricted shell. An

attacker could possibly use this issue to escape restrictions and execute

any command.

Topics%20covered

Topics Covered

security advisory security issue Ubuntu system update bash execution control hardening measure

Update Instructions

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

Ubuntu 14.04 ESM:
  bash                            4.3-7ubuntu1.8+esm1

Ubuntu 12.04 ESM:
  bash                            4.2-2ubuntu2.8

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

References

https://ubuntu.com/security/notices/USN-4058-2

https://ubuntu.com/security/notices/USN-4058-1

CVE-2019-9924

August 05, 2019

Topics%20covered

Topics Covered

security advisory security issue Ubuntu system update bash execution control hardening measure

Package Information

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