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ubuntucveUbuntu.comUB:CVE-2021-42376
HistoryNov 15, 2021 - 12:00 a.m.

CVE-2021-42376

2021-11-1500:00:00
ubuntu.com
ubuntu.com
16

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

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%

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.

Notes

Author Note
mdeslaur hush is not build in Ubuntu packages.

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

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%