USN-5179-2: BusyBox vulnerability
10 May 2022
BusyBox could be made to crash or run programs if it received specially crafted input.
- busybox - Tiny utilities for small and embedded systems
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)
The problem can be corrected by updating your system to the following package versions:
- busybox - 1:1.22.0-15ubuntu1.4+esm1
- busybox-initramfs - 1:1.22.0-15ubuntu1.4+esm1
- busybox-static - 1:1.22.0-15ubuntu1.4+esm1
In general, a standard system update will make all the necessary changes.