CVE-2023-52795: linux kernel Double Free — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: vhost-vdpa: fix use after free in vhost_vdpa_probe() The put_device() calls vhost_vdpa_release_dev() which calls ida_simple_remove() and frees "v". So this call to ida_simple_remove() is a use after free and a double free.

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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-415 CWE-415

CWE-416 Use After Free

Affected Products

Vendor	Product	Versions
linux	linux_kernel	6.0 — 6.1.64
linux	linux_kernel	6.2 — 6.5.13
linux	linux_kernel	6.6 — 6.6.3
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/ae8ea4e200675a940c365b496ef8e3fb4123601c https://git.kernel.org/stable/c/bf04132cd64ccde4e9e9765d489c83fe83c09b7f https://git.kernel.org/stable/c/c0f8b8fb7df9d1a38652eb5aa817afccd3c56111 https://git.kernel.org/stable/c/e07754e0a1ea2d63fb29574253d1fd7405607343 https://git.kernel.org/stable/c/ae8ea4e200675a940c365b496ef8e3fb4123601c https://git.kernel.org/stable/c/bf04132cd64ccde4e9e9765d489c83fe83c09b7f https://git.kernel.org/stable/c/c0f8b8fb7df9d1a38652eb5aa817afccd3c56111 https://git.kernel.org/stable/c/e07754e0a1ea2d63fb29574253d1fd7405607343

Frequently Asked Questions

What is CVE-2023-52795? +

In the Linux kernel, the following vulnerability has been resolved: vhost-vdpa: fix use after free in vhost_vdpa_probe() The put_device() calls vhost_vdpa_release_dev() which calls ida_simple_remove() and frees "v". So this call to ida_simple_remove() is a use after free and a double free. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2023-52795? +

CVE-2023-52795 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-2023-52795? +

CVE-2023-52795 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-2023-52795? +

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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