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description title date_published last_updated xray_id vul_id cvss severity discovered_by type
CVE-2021-42373 Medium severity. BusyBox man Section Name Handling NULL Pointer Dereference Local DoS
BusyBox man NULL Pointer Dereference
2021-11-09
2021-11-09
XRAY-189471
CVE-2021-42373
5.5
medium
JFrog Collab
vulnerability

Summary

BusyBox man Section Name Handling NULL Pointer Dereference Local DoS

Component

BusyBox

Affected versions

BusyBox [1.33.0, 1.33.1], fixed in 1.34.0

Description

The BusyBox toolkit implements a large number of Linux tools in a single executable and can even replace the Linux init system. Its small size and flexibility make it popular in embedded devices.

A NULL pointer dereference was found in the man applet, which leads to denial of service when a section name is supplied but no page argument is given. An attacker that controls man command line arguments can trigger this issue.

PoC

No PoC is supplied for this issue

Vulnerability Mitigations

No vulnerability mitigations are supplied for this issue

References

(JFrog) Unboxing BusyBox - 14 new vulnerabilities uncovered by Claroty and JFrog

NVD