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.
Does this matter?
Lower severity and a low EPSS score (0.31%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.31% probability · 24th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- 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/2024/12/17/2Mailing List
- http://www.openwall.com/lists/oss-security/2024/12/23/1Mailing List
- http://www.openwall.com/lists/oss-security/2025/01/05/1Mailing List
- http://www.openwall.com/lists/oss-security/2025/01/05/2Mailing List
- http://xenbits.xen.org/xsa/advisory-466.htmlThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.