SUSE-SU-2023:4466-1 Security update for xen

This update for xen fixes the following issues: - CVE-2023-46835: x86/AMD: mismatch in IOMMU quarantine page table levels XSA-445 bsc1216654. - CVE-2023-46836: x86: BTC/SRSO fixes not fully effective XSA-446 bsc1216807...

x86: BTC/SRSO fixes not fully effective

ISSUE DESCRIPTION The fixes for XSA-422 Branch Type Confusion and XSA-434 Speculative Return Stack Overflow are not IRQ-safe. It was believed that the mitigations always operated in contexts with IRQs disabled. However, the original XSA-254 fix for Meltdown XPTI deliberately left interrupts enabl...

Missing Linux Kernel mitigations for 'Speculative Return Stack Overflow (SRSO)' hardware vulnerability (INCEPTION, AMD-SB-7005)

The remote host is missing one or more known mitigations on Linux Kernel side for the referenced SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-onl...