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USN-6335-1: BusyBox vulnerabilities

4 September 2023

Several security issues were fixed in BusyBox.

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Releases

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)

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 18.04
Ubuntu 16.04
Ubuntu 14.04

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

Related notices

  • USN-5179-1: busybox-static, busybox-initramfs, udhcpd, busybox, busybox-syslogd, udhcpc
  • USN-5179-2: busybox-static, busybox-initramfs, udhcpd, busybox, busybox-syslogd, udhcpc