CVE-2021-42374

2021-11-1500:00:00

ubuntu.com

5.3 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

HIGH

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

3.3 Low

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

46.0%

JSON

An out-of-bounds heap read in Busybox’s unlzma applet leads to information
leak and denial of service when crafted LZMA-compressed input is
decompressed. This can be triggered by any applet/format that

Notes

Author	Note
mdeslaur	introduced in 1.27.0

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchbusybox< 1:1.27.2-2ubuntu3.4UNKNOWN
ubuntu20.04noarchbusybox< 1:1.30.1-4ubuntu6.4UNKNOWN
ubuntu21.04noarchbusybox< 1:1.30.1-6ubuntu2.1UNKNOWN
ubuntu21.10noarchbusybox< 1:1.30.1-6ubuntu3.1UNKNOWN
ubuntu22.04noarchbusybox< 1:1.30.1-7ubuntu2UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	busybox	< 1:1.27.2-2ubuntu3.4	UNKNOWN
ubuntu	20.04	noarch	busybox	< 1:1.30.1-4ubuntu6.4	UNKNOWN
ubuntu	21.04	noarch	busybox	< 1:1.30.1-6ubuntu2.1	UNKNOWN
ubuntu	21.10	noarch	busybox	< 1:1.30.1-6ubuntu3.1	UNKNOWN
ubuntu	22.04	noarch	busybox	< 1:1.30.1-7ubuntu2	UNKNOWN