What is CVE-2021-42377?

CVE-2021-42377 is a critical-severity vulnerability in Busybox, classified under CWE-590. CVSS score: 9.8/10. Published 2021-11-15.

How severe is CVE-2021-42377?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Busybox

CVE-2021-42377

An attacker-controlled pointer free in Busybox's hush applet leads to denial of service and possible code execution when processing a crafted shell command, due to the shell mishandling the &&& string. This may be used for remote code exec…

EPSS: 0.034 (87.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Busybox — versions 1.33.1, unspecified, 1.33.0
Netapp Cloud_backup
Netapp H300e
Netapp H300e_firmware
Netapp H300s
Netapp H300s_firmware
Netapp H410s
Netapp H410s_firmware
Netapp H500e
Netapp H500e_firmware

Weakness classification (CWE)

References

reefs@jfrog.com (Third Party Advisory)
reefs@jfrog.com (vendor-advisory)
reefs@jfrog.com (vendor-advisory)
reefs@jfrog.com (Third Party Advisory)
reefs@jfrog.com

Frequently asked questions

What is CVE-2021-42377?: CVE-2021-42377 is a critical-severity vulnerability in Busybox, classified under CWE-590. CVSS score: 9.8/10. Published 2021-11-15.
How severe is CVE-2021-42377?: Critical severity. CVSS v3 base score is 9.8 out of 10.