CVE-2024-36913: debian linux — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Leak pages if set_memory_encrypted() fails In CoCo VMs it is possible for the untrusted host to cause set_memory_encrypted() or set_memory_decrypted() to fail such that an error is returned and the resulting memory is shared. Callers need to take care to handle these errors to avoid returning decrypted (shared) memory to the page allocator, which could lead to functional or security issues. VMBus code could free decrypted pages if set_memory_encrypted()/decrypted() fails. Leak the pages if this happens.

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CVSS v3.1 Score

8.1

HIGH

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

Weakness Type (CWE)

CWE-1258 CWE-1258

Affected Products

Vendor	Product	Versions
debian	debian_linux	All
linux	linux_kernel	5.16 — 6.1.143
linux	linux_kernel	6.2 — 6.6.31
linux	linux_kernel	6.7 — 6.8.10
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/03f5a999adba062456c8c818a683beb1b498983a https://git.kernel.org/stable/c/6123a4e8e25bd40cf44db14694abac00e6b664e6 https://git.kernel.org/stable/c/7f2afcbfe4f6b6047b5f68db5067b7321e5be125 https://git.kernel.org/stable/c/e813a0fc2e597146e9cebea61ced9c796d4e308f https://git.kernel.org/stable/c/03f5a999adba062456c8c818a683beb1b498983a https://git.kernel.org/stable/c/6123a4e8e25bd40cf44db14694abac00e6b664e6 https://git.kernel.org/stable/c/e813a0fc2e597146e9cebea61ced9c796d4e308f

Other References

https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html

Frequently Asked Questions

What is CVE-2024-36913? +

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Leak pages if set_memory_encrypted() fails In CoCo VMs it is possible for the untrusted host to cause set_memory_encrypted() or set_memory_decrypted() to fail such that an error is returned and the resulting memory is shared. Callers need to take care to handle these errors to avoid returning decrypted (shared) memory to the page allocator, which could lead to functional or security issues. VMBus code could free decrypted pages if set_memory_encrypted()/decrypted() fails. Leak the pages if this happens. It has a CVSS v3.1 base score of 8.1 (HIGH).

How severe is CVE-2024-36913? +

CVE-2024-36913 has a CVSS v3.1 score of 8.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-36913? +

CVE-2024-36913 affects products from debian, linux, specifically: debian_linux, linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-36913? +

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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