CVE-2026-81627: Red Hat Enterprise Linux 10, грешка в паметта

Описание

Оригинално описание

A flaw was found in QEMU. The VAPIC setup hypercall in hw/i386/vapic.c does not validate that the writable RAM alias remains within the option ROM window. A privileged guest user on a Q35/KVM machine can position this alias over locked SMRAM, bypassing chipset D_LCK protection and injecting code into System Management Mode memory.

Засегнати продукти

• Red Hat Red Hat Enterprise Linux 10
• Red Hat Red Hat Enterprise Linux 6
• Red Hat Red Hat Enterprise Linux 7
• Red Hat Red Hat Enterprise Linux 7
• Red Hat Red Hat Enterprise Linux 8
• Red Hat Red Hat Enterprise Linux 8
• Red Hat Red Hat Enterprise Linux 9
• Red Hat Red Hat Enterprise Linux for NVIDIA 26
• Red Hat Red Hat OpenShift Container Platform 4
• Red Hat Red Hat OpenShift Container Platform 4
• Red Hat Red Hat OpenShift Container Platform 5
• Red Hat Red Hat OpenStack Platform 13 (Queens)

Вид слабост

• CWE-787 Out-of-bounds Write

История

Други уязвимости в Red Hat Red Hat Enterprise Linux 10

• 7.1CVE-2026-82976
• 6.5CVE-2026-121259
• 6.5CVE-2026-119843
• 6.5CVE-2026-120831
• 7.4CVE-2026-120830

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-81627
• https://nvd.nist.gov/vuln/detail/CVE-2026-81627
• https://access.redhat.com/security/cve/CVE-2026-81627
• https://bugzilla.redhat.com/show_bug.cgi?id=2536950
• https://gitlab.com/qemu-project/qemu/-/work_items/4206