First published: Mon Nov 15 2021(Updated: )
A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the handle_special function
Credit: reefs@jfrog.com reefs@jfrog.com reefs@jfrog.com
Affected Software | Affected Version | How to fix |
---|---|---|
Busybox Busybox | >=1.18.0<=1.33.1 | |
Fedoraproject Fedora | =33 | |
Fedoraproject Fedora | =34 | |
debian/busybox | <=1:1.30.1-6 | 1:1.35.0-4 1:1.36.1-9 |
>=1.18.0<=1.33.1 | ||
=33 | ||
=34 |
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CVE-2021-42384 is a use-after-free vulnerability in Busybox's awk applet which can lead to denial of service and possibly code execution when processing a crafted awk pattern in the handle_special function.
CVE-2021-42384 affects the Busybox package with specific versions on Ubuntu and Debian.
The severity of CVE-2021-42384 is not mentioned in the provided information.
You can fix CVE-2021-42384 by updating the affected Busybox package to the recommended versions provided by Ubuntu or Debian.
You can find more information about CVE-2021-42384 on the MITRE CVE database, the JFrog blog, and the Ubuntu security notices.