USN-5380-1: Bash vulnerability

20 April 2022

Bash could be used to escalate privileges.

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Releases

Packages

  • bash - GNU Bourne Again SHell

Details

It was discovered that Bash did not properly drop privileges
when the binary had the setuid bit enabled. An attacker could
possibly use this issue to escalate privileges.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04
Ubuntu 14.04

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

References

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Further reading