CVE-2023-53569: linux kernel — Fix

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.

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CVSS v3.1 Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products

Vendor	Product	Versions
linux	linux_kernel	2.6.12.1 — 4.14.316
linux	linux_kernel	4.15 — 4.19.284
linux	linux_kernel	4.20 — 5.4.244
linux	linux_kernel	5.5 — 5.10.181
linux	linux_kernel	5.11 — 5.15.113
linux	linux_kernel	5.16 — 6.1.30
linux	linux_kernel	6.2 — 6.3.4
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

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

Frequently Asked Questions

What is CVE-2023-53569? +

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. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2023-53569? +

CVE-2023-53569 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2023-53569? +

CVE-2023-53569 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-53569? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2023-53569