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USN-4058-1: Bash vulnerability

15 July 2019

A system hardening measure could be bypassed.



  • bash - GNU Bourne Again SHell


It was discovered that Bash incorrectly handled the restricted shell. An
attacker could possibly use this issue to escape restrictions and execute
any command.

Update instructions

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

Ubuntu 16.04

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


Related notices

  • USN-4058-2: bash-static, bash-doc, bash-builtins, bash