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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)

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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.

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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.

References

Related notices

  • USN-6961-1: udhcpd, udhcpc, busybox-syslogd, busybox-static, busybox-initramfs, busybox
  • USN-5179-1: udhcpd, udhcpc, busybox-syslogd, busybox-static, busybox-initramfs, busybox
  • USN-5179-2: udhcpd, udhcpc, busybox-syslogd, busybox-static, busybox-initramfs, busybox

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Further reading