CVE-2021-3428
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedMar 4, 2022
First seenMar 4, 2022
Weakness typeCWE-190Integer overflow
How to fix
Update
- linux linux_kernel5.9.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 5.9.0 | 5.9.0 |
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