CVE-2024-53241
MEDIUM severity · CVSS 5.5
5.5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/05df6e6cd9a76b778aee33c3c18c9f3b3566d4a5 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/05df6e6cd9a76b778aee33c3c18c9f3b3566d4a5Patch
- https://git.kernel.org/stable/c/82c211ead1ec440dbf81727e17b03b5e3c44b93dPatch
- https://git.kernel.org/stable/c/a2796dff62d6c6bfc5fbebdf2bee0d5ac0438906Patch
- https://git.kernel.org/stable/c/c7b4cfa6213a44fa48714186dfdf125072d036e3Patch
- https://git.kernel.org/stable/c/f7c3fdad0a474062d566aae3289d490d7e702d30Patch
- https://git.kernel.org/stable/c/fa719857f613fed94a79da055b13ca51214c694fPatch
- http://www.openwall.com/lists/oss-security/2024/12/17/2
- http://www.openwall.com/lists/oss-security/2024/12/23/1