CVE-2021-42377

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 15-11-2021 10:15

Last modified: - 31-03-2022 06:29

Total changes: - 4

Description

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 execution under rare conditions of filtered command input.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Low

Attack complexity

Network

Attack vector

High

Availability

High

Confidentiality

High

Integrity

None

Privileges required

Unchanged

Scope

None

User interaction

9.8

Base score

3.9

5.9

Exploitability score

Impact score

Verification logic

vendor=busybox AND product=busybox AND version=1.33.0

vendor=busybox AND product=busybox AND version=1.33.1

vendor=fedoraproject AND product=fedora AND version=33

vendor=fedoraproject AND product=fedora AND version=34

vendor=netapp AND product=cloud_backup AND version=-

vendor=netapp AND product=hci_management_node AND version=-

vendor=netapp AND product=solidfire AND version=-

AND

vendor=netapp AND product=h300s_firmware AND version=-

vendor=netapp AND product=h300s AND version=-

AND

vendor=netapp AND product=h500s_firmware AND version=-

vendor=netapp AND product=h500s AND version=-

AND

vendor=netapp AND product=h700s_firmware AND version=-

vendor=netapp AND product=h700s AND version=-

AND

vendor=netapp AND product=h300e_firmware AND version=-

vendor=netapp AND product=h300e AND version=-

AND

vendor=netapp AND product=h500e_firmware AND version=-

vendor=netapp AND product=h500e AND version=-

AND

vendor=netapp AND product=h700e_firmware AND version=-

vendor=netapp AND product=h700e AND version=-

AND

vendor=netapp AND product=h410s_firmware AND version=-

vendor=netapp AND product=h410s AND version=-

Reference

N/A-Third Party Advisory
FEDORA-2021-c52c0fe490-Mailing List, Third Party Advisory
FEDORA-2021-5a95823596-Mailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20211223-0002/

Keywords

CVE-2021-42377

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2021-42377

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures