CVE-2023-52510

HIGH
Published Mar 2, 2024 Modified Dec 11, 2024 CWE-416

Description

In the Linux kernel, the following vulnerability has been resolved: ieee802154: ca8210: Fix a potential UAF in ca8210_probe If of_clk_add_provider() fails in ca8210_register_ext_clock(), it calls clk_unregister() to release priv->clk and returns an error. However, the caller ca8210_probe() then calls ca8210_remove(), where priv->clk is freed again in ca8210_unregister_ext_clock(). In this case, a use-after-free may happen in the second time we call clk_unregister(). Fix this by removing the first clk_unregister(). Also, priv->clk could be an error code on failure of clk_register_fixed_rate(). Use IS_ERR_OR_NULL to catch this case in ca8210_unregister_ext_clock().

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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-416 Use After Free

Affected Products

Vendor Product
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel

References

Advisories & Patches

https://git.kernel.org/stable/c/217efe32a45249eb07dcd7197e8403de98345e66 https://git.kernel.org/stable/c/28b68cba378e3e50a4082b65f262bc4f2c7c2add https://git.kernel.org/stable/c/55e06850c7894f00d41b767c5f5665459f83f58f https://git.kernel.org/stable/c/84c6aa0ae5c4dc121f9996bb8fed46c80909d80e https://git.kernel.org/stable/c/85c2857ef90041f567ce98722c1c342c4d31f4bc https://git.kernel.org/stable/c/becf5c147198f4345243c5df0c4f035415491640 https://git.kernel.org/stable/c/cdb46be93c1f7bbf2c4649e9fc5fb147cfb5245d https://git.kernel.org/stable/c/f990874b1c98fe8e57ee9385669f501822979258 https://git.kernel.org/stable/c/217efe32a45249eb07dcd7197e8403de98345e66 https://git.kernel.org/stable/c/28b68cba378e3e50a4082b65f262bc4f2c7c2add https://git.kernel.org/stable/c/55e06850c7894f00d41b767c5f5665459f83f58f https://git.kernel.org/stable/c/84c6aa0ae5c4dc121f9996bb8fed46c80909d80e https://git.kernel.org/stable/c/85c2857ef90041f567ce98722c1c342c4d31f4bc https://git.kernel.org/stable/c/becf5c147198f4345243c5df0c4f035415491640 https://git.kernel.org/stable/c/cdb46be93c1f7bbf2c4649e9fc5fb147cfb5245d https://git.kernel.org/stable/c/f990874b1c98fe8e57ee9385669f501822979258

Frequently Asked Questions

What is CVE-2023-52510? +
In the Linux kernel, the following vulnerability has been resolved: ieee802154: ca8210: Fix a potential UAF in ca8210_probe If of_clk_add_provider() fails in ca8210_register_ext_clock(), it calls clk_unregister() to release priv->clk and returns an error. However, the caller ca8210_probe() then calls ca8210_remove(), where priv->clk is freed again in ca8210_unregister_ext_clock(). In this case, a use-after-free may happen in the second time we call clk_unregister(). Fix this by removing the first clk_unregister(). Also, priv->clk could be an error code on failure of clk_register_fixed_rate(). Use IS_ERR_OR_NULL to catch this case in ca8210_unregister_ext_clock(). It has a CVSS v3.1 base score of 7.8 (HIGH).
How severe is CVE-2023-52510? +
CVE-2023-52510 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-2023-52510? +
CVE-2023-52510 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-2023-52510? +
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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