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USN-5179-2: BusyBox vulnerability

10 May 2022

BusyBox could be made to crash or run programs if it received specially crafted input.

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Releases

Packages

  • busybox - Tiny utilities for small and embedded systems

Details

USN-5179-1 fixed vulnerabilities in BusyBox. This update provides the
corresponding updates for Ubuntu 16.04 ESM.

Original advisory 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 possibly
execute arbitrary code. (CVE-2021-28831)

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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 16.04

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

References

Related notices

  • USN-5179-1: busybox, udhcpc, busybox-static, busybox-initramfs, udhcpd, busybox-syslogd
  • USN-6335-1: busybox, udhcpc, busybox-static, busybox-initramfs, udhcpd, busybox-syslogd