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
https://bugzilla.redhat.com/show_bug.cgi?id=1972621
Issue TrackingPermissions RequiredThird Party Advisory
https://ubuntu.com/security/CVE-2021-3428
Third Party Advisory
https://www.openwall.com/lists/oss-security/2021/03/17/1
Mailing ListThird Party Advisory
CVSS impact metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 · Medium
CVSS V3.1
CVSS V3.0
CVSS V2.0
Information
Source identifier
Vulnerability status
Analyzed
Published
2022-03-04T18:15:08.130
3 years agoLast modified
2022-03-11T15:39:51.520
3 years ago