CVE-2024-53241: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: x86/xen: don't do PV iret hypercall through hypercall page Instead of jumping to the Xen hypercall page for doing the iret hypercall, directly code the required sequence in xen-asm.S. This is done in preparation of no longer using hypercall page at all, as it has shown to cause problems with speculation mitigations. This is part of XSA-466 / CVE-2024-53241.

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CVSS v3.1 Score

5.5

MEDIUM

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

Affected Products

Vendor	Product	Versions
linux	linux_kernel	< 5.10.232
linux	linux_kernel	5.11 — 5.15.175
linux	linux_kernel	5.16 — 6.1.121
linux	linux_kernel	6.2 — 6.6.67
linux	linux_kernel	6.7 — 6.12.6
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/05df6e6cd9a76b778aee33c3c18c9f3b3566d4a5 https://git.kernel.org/stable/c/82c211ead1ec440dbf81727e17b03b5e3c44b93d https://git.kernel.org/stable/c/a2796dff62d6c6bfc5fbebdf2bee0d5ac0438906 https://git.kernel.org/stable/c/c7b4cfa6213a44fa48714186dfdf125072d036e3 https://git.kernel.org/stable/c/f7c3fdad0a474062d566aae3289d490d7e702d30 https://git.kernel.org/stable/c/fa719857f613fed94a79da055b13ca51214c694f

Other References

http://www.openwall.com/lists/oss-security/2024/12/17/2 http://www.openwall.com/lists/oss-security/2024/12/23/1 http://www.openwall.com/lists/oss-security/2025/01/05/1 http://www.openwall.com/lists/oss-security/2025/01/05/2 http://xenbits.xen.org/xsa/advisory-466.html https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

Frequently Asked Questions

What is CVE-2024-53241? +

In the Linux kernel, the following vulnerability has been resolved: x86/xen: don't do PV iret hypercall through hypercall page Instead of jumping to the Xen hypercall page for doing the iret hypercall, directly code the required sequence in xen-asm.S. This is done in preparation of no longer using hypercall page at all, as it has shown to cause problems with speculation mitigations. This is part of XSA-466 / CVE-2024-53241. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-53241? +

CVE-2024-53241 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-53241? +

CVE-2024-53241 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-2024-53241? +

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-2024-53241