CVE-2021-3428
Description
A flaw was found in the Linux kernel. A denial of service problem is identified if an extent tree is corrupted in a crafted ext4 filesystem in fs/ext4/extents.c in ext4_es_cache_extent. Fabricating an integer overflow, A local attacker with a special user privilege may cause a system crash problem which can lead to an availability threat.
References
CvssV3 impact
BaseSeverity | MEDIUM |
ConfidentialityImpact | NONE |
AttackComplexity | LOW |
Scope | UNCHANGED |
AttackVector | LOCAL |
AvailabilityImpact | HIGH |
IntegrityImpact | NONE |
PrivilegesRequired | LOW |
BaseScore | 5.5 |
VectorString | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Version | 3.1 |
UserInteraction | NONE |
CvssV2 impact
AccessComplexity | LOW |
ConfidentialityImpact | NONE |
AvailabilityImpact | COMPLETE |
IntegrityImpact | NONE |
BaseScore | 4.9 |
VectorString | AV:L/AC:L/Au:N/C:N/I:N/A:C |
Version | 2.0 |
AccessVector | LOCAL |
Authentication | NONE |