USN-5179-2: BusyBox vulnerability
10 May 2022
BusyBox could be made to crash or run programs if it received specially crafted input.
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)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.04
-
busybox
-
1:1.22.0-15ubuntu1.4+esm1
Available with Ubuntu Pro
-
busybox-initramfs
-
1:1.22.0-15ubuntu1.4+esm1
Available with Ubuntu Pro
-
busybox-static
-
1:1.22.0-15ubuntu1.4+esm1
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
References
Related notices
- USN-5179-1: busybox-initramfs, busybox-syslogd, udhcpd, busybox-static, busybox, udhcpc
- USN-6335-1: busybox-initramfs, busybox-syslogd, udhcpd, busybox-static, busybox, udhcpc