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cve[email protected]CVE-2021-42376
HistoryNov 15, 2021 - 9:15 p.m.

CVE-2021-42376

2021-11-1521:15:00
CWE-476
[email protected]
web.nvd.nist.gov
145
cve-2021-42376
null pointer dereference
busybox
hush applet
denial of service
crafted shell command
validation
dos
filtered command input

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7 High

AI Score

Confidence

Low

1.9 Low

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:N/I:N/A:P

0.0004 Low

EPSS

Percentile

13.4%

JSON

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.

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5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7 High

AI Score

Confidence

Low

1.9 Low

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:N/I:N/A:P

0.0004 Low

EPSS

Percentile

13.4%

JSON
Related for CVE-2021-42376
prion1osv1ubuntucve1nessus11redhatcve1debiancve1cnvd1veracode1cbl_mariner2alpinelinux1amazon1openvas11mageia1fedora2thn1ics3suse1avleonov1