CVE-2021-42373: Null Pointer Dereference
Published Nov 15, 2021
·Updated
A NULL pointer dereference in Busybox's man applet leads to denial of service when a section name is supplied but no page argument is given
Affected Software
35 affected components
Busybox Busybox=1.33.0
Busybox Busybox=1.33.1
Fedoraproject Fedora=33
Fedoraproject Fedora=34
NetApp Cloud Backup
NetApp Hci Management Node
NetApp Solidfire
All of the following
NetApp H300s Firmware
NetApp H300s
All of the following
NetApp H500s Firmware
NetApp H500s
All of the following
NetApp H700s Firmware
NetApp H700s
All of the following
NetApp H300e Firmware
NetApp H300e
All of the following
NetApp H500e Firmware
NetApp H500e
All of the following
NetApp H700e Firmware
NetApp H700e
All of the following
NetApp H410s Firmware
NetApp H410s
NetApp H300s Firmware
NetApp H300s
NetApp H500s Firmware
NetApp H500s
NetApp H700s Firmware
NetApp H700s
NetApp H300e Firmware
NetApp H300e
NetApp H500e Firmware
NetApp H500e
NetApp H700e Firmware
NetApp H700e
NetApp H410s Firmware
NetApp H410s
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
Frequently Asked Questions
1
What is the vulnerability ID?
The vulnerability ID is CVE-2021-42373.
2
What is the severity of CVE-2021-42373?
The severity of CVE-2021-42373 is medium.
3
Which software is affected by CVE-2021-42373?
Busybox versions 1.33.0 and 1.33.1, as well as Fedora versions 33 and 34, are affected by CVE-2021-42373.
4
How can a NULL pointer dereference in Busybox's man applet lead to denial of service?
When a section name is supplied but no page argument is given, a NULL pointer dereference in Busybox's man applet can lead to denial of service.
5
Is there a fix for CVE-2021-42373?
Yes, an update to a non-vulnerable version of Busybox or Fedora should fix CVE-2021-42373.