1. Ubuntu Security Notices
  2. USN-4531-1

USN-4531-1: BusyBox vulnerability

Publication date

22 September 2020

Overview

Fraudulent security certificates could allow sensitive information to be exposed when accessing the Internet.

Releases

Packages

  • busybox - Tiny utilities for small and embedded systems

Details

It was discovered that the BusyBox wget applet incorrectly validated SSL
certificates. A remote attacker could possibly use this issue to intercept
secure communications.

It was discovered that the BusyBox wget applet incorrectly validated SSL
certificates. A remote attacker could possibly use this issue to intercept
secure communications.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
20.04 focal busybox –  1:1.30.1-4ubuntu6.2
busybox-initramfs –  1:1.30.1-4ubuntu6.2
busybox-static –  1:1.30.1-4ubuntu6.2
18.04 bionic busybox –  1:1.27.2-2ubuntu3.3
busybox-initramfs –  1:1.27.2-2ubuntu3.3
busybox-static –  1:1.27.2-2ubuntu3.3

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References

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