CVE-2023-53569

HIGH

Linux Kernel 2.6.12.1-4.14.315 - Denial of Service via Invalid Block Size in ext2 Mount

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: ext2: Check block size validity during mount Check that log of block size stored in the superblock has sensible value. Otherwise the shift computing the block size can overflow leading to undefined behavior.

References (8)

Core 8

Scores

CVSS v3 7.8
EPSS 0.0014
EPSS Percentile 4.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

Status published
Products (27)
linux/Kernel 2.6.12 - 4.14.316linux
linux/Kernel 4.15.0 - 4.19.284linux
linux/Kernel 4.20.0 - 5.4.244linux
linux/Kernel 5.11.0 - 5.15.113linux
linux/Kernel 5.16.0 - 6.1.30linux
linux/Kernel 5.5.0 - 5.10.181linux
linux/Kernel 6.2.0 - 6.3.4linux
Linux/Linux < 2.6.12
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 0ebfaf14150f55550cffb1148ed3920143c7a69c
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 22ab5fed07ad4b206ea910fd0132d1a0d4831584
... and 17 more
Published Oct 04, 2025
Tracked Since Feb 18, 2026