CVE-2021-3506

Description


An out-of-bounds (OOB) memory access flaw was found in fs/f2fs/node.c in the f2fs module in the Linux kernel in versions before 5.12.0-rc4. A bounds check failure allows a local attacker to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.

CvssV3 impact


BaseSeverity

HIGH

ConfidentialityImpact

HIGH

AttackComplexity

LOW

Scope

UNCHANGED

AttackVector

LOCAL

AvailabilityImpact

HIGH

IntegrityImpact

NONE

PrivilegesRequired

LOW

BaseScore

7.1

VectorString

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

Version

3.1

UserInteraction

NONE

CvssV2 impact


AccessComplexity

LOW

ConfidentialityImpact

PARTIAL

AvailabilityImpact

COMPLETE

IntegrityImpact

NONE

BaseScore

5.6

VectorString

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

Version

2.0

AccessVector

LOCAL

Authentication

NONE