CVE-2023-53285: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: ext4: add bounds checking in get_max_inline_xattr_value_size() Normally the extended attributes in the inode body would have been checked when the inode is first opened, but if someone is writing to the block device while the file system is mounted, it's possible for the inode table to get corrupted. Add bounds checking to avoid reading beyond the end of allocated memory if this happens.

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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	< 4.14.315
linux	linux_kernel	4.15 — 4.19.283
linux	linux_kernel	4.20 — 5.4.243
linux	linux_kernel	5.5 — 5.10.180
linux	linux_kernel	5.11 — 5.15.112
linux	linux_kernel	5.16 — 6.1.29
linux	linux_kernel	6.2 — 6.2.16
linux	linux_kernel	6.3 — 6.3.3
linux	linux_kernel	All

References

Advisories & Patches

Frequently Asked Questions

What is CVE-2023-53285? +

In the Linux kernel, the following vulnerability has been resolved: ext4: add bounds checking in get_max_inline_xattr_value_size() Normally the extended attributes in the inode body would have been checked when the inode is first opened, but if someone is writing to the block device while the file system is mounted, it's possible for the inode table to get corrupted. Add bounds checking to avoid reading beyond the end of allocated memory if this happens. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2023-53285? +

CVE-2023-53285 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-2023-53285? +

CVE-2023-53285 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-2023-53285? +

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-2023-53285