CVEvulnerability
CVE-2021-3428
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2022-03-04
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 4.9 MEDIUM — AV:L/AC:L/Au:N/C:N/I:N/A:C
- Weaknesses
- CWE-190
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.
Affected configurations
• linux linux kernel (< 5.9.0)
Related
Weakness · CWE (1)
- CWE-190 Integer Overflow or Wraparound weakness
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1972621 Issue Tracking, Permissions Required, Third Party Advisory
- https://ubuntu.com/security/CVE-2021-3428 Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/03/17/1 Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1972621 Issue Tracking, Permissions Required, Third Party Advisory
- https://ubuntu.com/security/CVE-2021-3428 Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/03/17/1 Mailing List, Third Party Advisory