Vulnerability Details : CVE-2021-42376

A NULL pointer dereference in Busybox's hush applet leads to denial of service when processing a crafted shell command, due to missing validation after a \x03 delimiter character. This may be used for DoS under very rare conditions of filtered command input.
Published 2021-11-15 21:15:08
Updated 2023-04-25 21:15:10
Source JFrog
View at NVD,   CVE.org
Vulnerability category: Memory CorruptionDenial of service

Products affected by CVE-2021-42376

Threat overview for CVE-2021-42376

Top countries where our scanners detected CVE-2021-42376
Top open port discovered on systems with this issue 443
IPs affected by CVE-2021-42376 506,413
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2021-42376!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2021-42376

EPSS FAQ
0.03%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 4 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-42376

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
1.9
 LOW AV:L/AC:M/Au:N/C:N/I:N/A:P
3.4
2.9
 NIST
5.5
 MEDIUM CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
1.8
3.6
 NIST

CWE ids for CVE-2021-42376

  • The product dereferences a pointer that it expects to be valid but is NULL.
    Assigned by:
    • nvd@nist.gov (Primary)
    • reefs@jfrog.com (Secondary)

References for CVE-2021-42376

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