CVE-2023-42364 Use after free in n/a

What is CVE-2023-42364?

CVE-2023-42364 is a medium-severity use after free vulnerability in n/a, published on 27 Nov 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

A use-after-free vulnerability in BusyBox v.1.36.1 allows attackers to cause a denial of service via a crafted awk pattern in the awk.c evaluate function.

Weakness: CWE-416

Which versions are affected by CVE-2023-42364?

It affects 1 product.

Products include Busybox Busybox.

How do I fix CVE-2023-42364?

Upgrade to a fixed version.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2023-42364 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-42364 exists.

Other vulnerabilities in n/a

• CVE-2022-48174 Memory corruption in n/a Critical 9.8
• CVE-2021-42377 Memory corruption in busybox Critical 9.8
• CVE-2016-2148 Memory corruption in n/a Critical 9.8
• CVE-2022-28391 Command injection in n/a High 8.8
• CVE-2017-16544 Code injection in n/a High 8.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2023-42364, AZL-33493, AZL-34575, BELL-CVE-2023-42364, CLEANSTART-2026-SM91507, DEBIAN-CVE-2023-42364 and 3 more.