USN-6335-1: BusyBox vulnerabilities

Publication date

4 September 2023

Overview

Several security issues were fixed in BusyBox.


Packages

  • busybox - Tiny utilities for small and embedded systems

Details

It was discovered that BusyBox incorrectly handled certain malformed gzip
archives. If a user or automated system were tricked into processing a
specially crafted gzip archive, a remote attacker could use this issue to
cause BusyBox to crash, resulting in a denial of service, or execute
arbitrary code. This issue only affected Ubuntu 14.04 LTS.
(CVE-2021-28831)

It was discovered that BusyBox did not properly validate user input when
performing certain arithmetic operations. If a user or automated system
were tricked into processing a specially crafted file, an attacker could
possibly use this issue to cause BusyBox to crash, resulting in a denial
of service, or execute arbitrary code. (CVE-2022-48174)

It was discovered that BusyBox incorrectly handled certain malformed gzip
archives. If a user or automated system were tricked into processing a
specially crafted gzip archive, a remote attacker could use this issue to
cause BusyBox to crash, resulting in a denial of service, or execute
arbitrary code. This issue only affected Ubuntu 14.04 LTS.
(CVE-2021-28831)

It was discovered that BusyBox did not properly validate user input when
performing certain arithmetic operations. If a user or automated system
were tricked into processing a specially crafted file, an attacker could
possibly use this issue to cause BusyBox to crash, resulting in a denial
of service, or execute arbitrary code. (CVE-2022-48174)

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
18.04 bionic busybox –  1:1.27.2-2ubuntu3.4+esm1  
busybox-initramfs –  1:1.27.2-2ubuntu3.4+esm1  
busybox-static –  1:1.27.2-2ubuntu3.4+esm1  
16.04 xenial busybox –  1:1.22.0-15ubuntu1.4+esm2  
busybox-initramfs –  1:1.22.0-15ubuntu1.4+esm2  
busybox-static –  1:1.22.0-15ubuntu1.4+esm2  
14.04 trusty busybox –  1:1.21.0-1ubuntu1.4+esm1  
busybox-initramfs –  1:1.21.0-1ubuntu1.4+esm1  
busybox-static –  1:1.21.0-1ubuntu1.4+esm1  

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