USN-6961-1: BusyBox vulnerabilities

Releases

• Ubuntu 24.04 LTS
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS

Packages

• busybox - Tiny utilities for small and embedded systems

Details

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 a denial of service, or execute arbitrary
code. (CVE-2022-48174)

It was discovered that BusyBox incorrectly managed memory when evaluating
certain awk expressions. An attacker could possibly use this issue to cause
a denial of service, or execute arbitrary code. This issue only affected
Ubuntu 24.04 LTS. (CVE-2023-42363, CVE-2023-42364, CVE-2023-42365)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 24.04

• busybox - 1:1.36.1-6ubuntu3.1
• busybox-initramfs - 1:1.36.1-6ubuntu3.1
• busybox-static - 1:1.36.1-6ubuntu3.1

Ubuntu 22.04

• busybox - 1:1.30.1-7ubuntu3.1
• busybox-initramfs - 1:1.30.1-7ubuntu3.1
• busybox-static - 1:1.30.1-7ubuntu3.1

Ubuntu 20.04

• busybox - 1:1.30.1-4ubuntu6.5
• busybox-initramfs - 1:1.30.1-4ubuntu6.5
• busybox-static - 1:1.30.1-4ubuntu6.5

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

References

• CVE-2023-42363
• CVE-2022-48174
• CVE-2023-42364
• CVE-2023-42365

Related notices

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