CVE-2022-25327

2022-02-2511:15:08

Debian Security Bug Tracker

security-tracker.debian.org

pam module

fscrypt metadata

denial of service

upgrade

unix

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

5.5

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

EPSS

Percentile

5.1%

JSON

The PAM module for fscrypt doesn’t adequately validate fscrypt metadata files, allowing users to create malicious metadata files that prevent other users from logging in. A local user can cause a denial of service by creating a fscrypt metadata file that prevents other users from logging into the system. We recommend upgrading to version 0.3.3 or above

OSVersionArchitecturePackageVersionFilename
Debian12allfscrypt< 0.3.3-1fscrypt_0.3.3-1_all.deb
Debian11allfscrypt<= 0.2.9-1fscrypt_0.2.9-1_all.deb
Debian999allfscrypt< 0.3.3-1fscrypt_0.3.3-1_all.deb
Debian13allfscrypt< 0.3.3-1fscrypt_0.3.3-1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	fscrypt	< 0.3.3-1	fscrypt_0.3.3-1_all.deb
Debian	11	all	fscrypt	<= 0.2.9-1	fscrypt_0.2.9-1_all.deb
Debian	999	all	fscrypt	< 0.3.3-1	fscrypt_0.3.3-1_all.deb
Debian	13	all	fscrypt	< 0.3.3-1	fscrypt_0.3.3-1_all.deb