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redhatcveRedhat.comRH:CVE-2021-4238
HistoryDec 28, 2022 - 11:35 a.m.

CVE-2021-4238

2022-12-2811:35:12
redhat.com
access.redhat.com
14
flaw
goutils
entropy
alphanumeric strings

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

0.002 Low

EPSS

Percentile

54.0%

A flaw was found in goutils where randomly generated alphanumeric strings contain significantly less entropy than expected. Both the RandomAlphaNumeric and CryptoRandomAlphaNumeric functions always return strings containing at least one digit from 0 to 9. This issue significantly reduces the amount of entropy generated in short strings by these functions.

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

0.002 Low

EPSS

Percentile

54.0%