SB2024081535 - Ubuntu update for busybox

Description

This security bulletin contains information about 4 secuirty vulnerabilities.

1) Out-of-bounds write (CVE-ID: CVE-2022-48174)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input ash.c. A remote attacker can send specially crafted data to the application, trigger an out-of-bounds write and execute arbitrary code on the target system.

2) Use-after-free (CVE-ID: CVE-2023-42363)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error within the xasprintf() function in xfuncs_printf.c. A remote attacker can trick the victim to pass a specially crafted input to the application and crash it.

3) Use-after-free (CVE-ID: CVE-2023-42364)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error within the evaluate() function in awk.c. A remote attacker can trick the victim to pass a specially crafted awk pattern to the application and crash it.

4) Use-after-free (CVE-ID: CVE-2023-42365)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error within the copyvar() function in awk.c. A remote attacker can trick the victim to pass a specially crafted awk pattern to the application and crash it.

Remediation

Install update from vendor's website.

References

• https://ubuntu.com/security/notices/USN-6961-1