CVE-2023-53019: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: net: mdio: validate parameter addr in mdiobus_get_phy() The caller may pass any value as addr, what may result in an out-of-bounds access to array mdio_map. One existing case is stmmac_init_phy() that may pass -1 as addr. Therefore validate addr before using it.

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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

Weakness Type (CWE)

CWE-129 CWE-129

Affected Products

Vendor	Product	Versions
linux	linux_kernel	4.5 — 4.14.305
linux	linux_kernel	4.15 — 4.19.272
linux	linux_kernel	4.20 — 5.4.231
linux	linux_kernel	5.5 — 5.10.166
linux	linux_kernel	5.11 — 5.15.91
linux	linux_kernel	5.16 — 6.1.9
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/1d80c259dfbadefa61b7ea334dfce5cb57f8c72f https://git.kernel.org/stable/c/4bc5f1f6bc94e695dfd912122af96e7115a0ddb8 https://git.kernel.org/stable/c/7879626296e6ffd838ae0f2af1ab49ee46354973 https://git.kernel.org/stable/c/867dbe784c5010a466f00a7d1467c1c5ea569c75 https://git.kernel.org/stable/c/8a7b9560a3a8eb8724888c426e05926752f73aa0 https://git.kernel.org/stable/c/ad67de330d83e8078372b52af18ffe8d39e26c85 https://git.kernel.org/stable/c/c431a3d642593bbdb99e8a9e3eed608b730db6f8

Frequently Asked Questions

What is CVE-2023-53019? +

In the Linux kernel, the following vulnerability has been resolved: net: mdio: validate parameter addr in mdiobus_get_phy() The caller may pass any value as addr, what may result in an out-of-bounds access to array mdio_map. One existing case is stmmac_init_phy() that may pass -1 as addr. Therefore validate addr before using it. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2023-53019? +

CVE-2023-53019 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-2023-53019? +

CVE-2023-53019 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-2023-53019? +

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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