CVE-2023-53569

HIGH EPSS 3.7%
Published Oct 4, 20258mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Oct 4, 2025 8mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
3.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 12

VendorProductVersionRange
linuxlinux_kernel*≥2.6.12.1  –  <4.14.316
linuxlinux_kernel*≥4.15  –  <4.19.284
linuxlinux_kernel*≥4.20  –  <5.4.244
linuxlinux_kernel*≥5.5  –  <5.10.181
linuxlinux_kernel*≥5.11  –  <5.15.113
linuxlinux_kernel*≥5.16  –  <6.1.30
linuxlinux_kernel*≥6.2  –  <6.3.4
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any

References 8

  • git.kernel.org https://git.kernel.org/stable/c/0ebfaf14150f55550cffb1148ed3920143c7a69c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/22ab5fed07ad4b206ea910fd0132d1a0d4831584
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/451b98155be5dfee05bc6e7c8b30c0be4add3f71
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/62aeb94433fcec80241754b70d0d1836d5926b0a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/99f8a15af6c9f0653193104a9e70891f950c6001
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c2e7776843a953fd7e48895c3880c277f996193e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c4813f858e5c3e4c4659ce95385c1c400c593e1e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e6f4fb28890c1361e0db9eb1adee3fc04e7fe7f5
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0ebfaf14150f55550cffb1148ed3920143c7a69c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/22ab5fed07ad4b206ea910fd0132d1a0d4831584
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/451b98155be5dfee05bc6e7c8b30c0be4add3f71
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/62aeb94433fcec80241754b70d0d1836d5926b0a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/99f8a15af6c9f0653193104a9e70891f950c6001
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c2e7776843a953fd7e48895c3880c277f996193e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c4813f858e5c3e4c4659ce95385c1c400c593e1e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e6f4fb28890c1361e0db9eb1adee3fc04e7fe7f5
    Patch