CVE-2021-39272

2021-08-3006:15:06

Alpine Linux Development Team

security.alpinelinux.org

fetchmail

starttls

encryption

imap

preauth

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

Confidence

High

EPSS

0.002

Percentile

55.7%

JSON

Fetchmail before 6.4.22 fails to enforce STARTTLS session encryption in some circumstances, such as a certain situation with IMAP and PREAUTH.

OSVersionArchitecturePackageVersionFilename
Alpineedge-communitynoarchfetchmail< 6.4.22-r0UNKNOWN
Alpine3.14-communitynoarchfetchmail< 6.4.22-r0UNKNOWN
Alpine3.15-communitynoarchfetchmail< 6.4.22-r0UNKNOWN
Alpine3.16-communitynoarchfetchmail< 6.4.22-r0UNKNOWN
Alpine3.17-communitynoarchfetchmail< 6.4.22-r0UNKNOWN
Alpine3.18-communitynoarchfetchmail< 6.4.22-r0UNKNOWN
Alpine3.19-communitynoarchfetchmail< 6.4.22-r0UNKNOWN
Alpine3.20-communitynoarchfetchmail< 6.4.22-r0UNKNOWN

OS	Version	Architecture	Package	Version	Filename
Alpine	edge-community	noarch	fetchmail	< 6.4.22-r0	UNKNOWN
Alpine	3.14-community	noarch	fetchmail	< 6.4.22-r0	UNKNOWN
Alpine	3.15-community	noarch	fetchmail	< 6.4.22-r0	UNKNOWN
Alpine	3.16-community	noarch	fetchmail	< 6.4.22-r0	UNKNOWN
Alpine	3.17-community	noarch	fetchmail	< 6.4.22-r0	UNKNOWN
Alpine	3.18-community	noarch	fetchmail	< 6.4.22-r0	UNKNOWN
Alpine	3.19-community	noarch	fetchmail	< 6.4.22-r0	UNKNOWN
Alpine	3.20-community	noarch	fetchmail	< 6.4.22-r0	UNKNOWN