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githubGitHub Advisory DatabaseGHSA-CHXF-FJCF-7FWP
HistoryMar 01, 2022 - 9:04 p.m.

Possible filesystem space exhaustion by local users

2022-03-0121:04:07
GitHub Advisory Database
github.com
21
filesystem space exhaustion
local users
fscrypt
cve-2022-25326
upgrade
permissions

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

0

Percentile

12.6%

fscrypt through v0.3.2 creates a world-writable directory by default when setting up a filesystem, allowing unprivileged users to exhaust filesystem space. We recommend upgrading to fscrypt v0.3.3 or above and adjusting the permissions on existing fscrypt metadata directories where applicable.

For more details, see CVE-2022-25326 and https://github.com/google/fscrypt#setting-up-fscrypt-on-a-filesystem.

Affected configurations

Vulners
Node
googlefscryptRange<0.3.3
VendorProductVersionCPE
googlefscrypt*cpe:2.3:a:google:fscrypt:*:*:*:*:*:*:*:*

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

0

Percentile

12.6%