CVE-2021-42384: Use After Free

Published 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 handlespecial function

Affected Software

4 affected componentsFixes available
debian/busybox<=1:1.30.1-6
1:1.35.0-41:1.36.1-9
Busybox Busybox>=1.18.0<=1.33.1
Fedoraproject Fedora=33
Fedoraproject Fedora=34

Event History

Nov 15, 2021
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
DescriptionWeakness
Data Sourced
via NVD·09:15 PM
DescriptionSeverityWeaknessAffected Software
Jan 12, 2024
Data Sourced
via Launchpad·12:01 AM
Description
Sep 15, 2024
Data Sourced
via Ubuntu·09:55 PM
RemedyDescriptionSeverityAffected Software
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Frequently Asked Questions

1

What is CVE-2021-42384?

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.

2

How does CVE-2021-42384 affect the software?

CVE-2021-42384 affects the Busybox package with specific versions on Ubuntu and Debian.

3

What is the severity of CVE-2021-42384?

The severity of CVE-2021-42384 is not mentioned in the provided information.

4

How can I fix CVE-2021-42384?

You can fix CVE-2021-42384 by updating the affected Busybox package to the recommended versions provided by Ubuntu or Debian.

5

Where can I find more information about CVE-2021-42384?

You can find more information about CVE-2021-42384 on the MITRE CVE database, the JFrog blog, and the Ubuntu security notices.

Contact

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