CVE-2023-52482 x86/srso: Add SRSO mitigation for Hygon processors

In the Linux kernel, the following vulnerability has been resolved: x86/srso: Add SRSO mitigation for Hygon processors Add mitigation for the speculative return stack overflow vulnerability which exists on Hygon processors too...

CVE-2023-52482

CVE-2023-52482 is a Linux kernel issue where x86 SRSO mitigation was added to address speculative return stack overflow on Hygon processors. The connected Nessus entry for MiracleLinux 9 references kernel commits that implement x86 srso mitigation for Hygon and notes this CVE’s resolution, aligni...

CVE-2023-46836 x86: BTC/SRSO fixes not fully effective

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 enabled on two entry...

CVE-2023-46836 x86: BTC/SRSO fixes not fully effective

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 enabled on two entry...

SUSE-SU-2023:4945-1 Security update for xen

This update for xen fixes the following issues: - CVE-2023-46836: Fixed BTC/SRSO fixes not fully effective bsc1216807. - CVE-2023-46835: Fixed mismatch in IOMMU quarantine page table levels on x86/AMD bsc1216654. Update to Xen 4.17.3 bug fix release bsc1027519...

SUSE SLED15: xen / xen-devel / xen-doc-html / xen-libs / xen-libs-32bit / etc (SUSE-SU-2023:4945-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:4945-1 advisory. - CVE-2023-46836: Fixed BTC/SRSO fixes not fully effective bsc1216807. - CVE-2023-46835: Fixed...

Fedora 37 : xen (2023-e62da41072)

The remote Fedora 37 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-e62da41072 advisory. x86/AMD: mismatch in IOMMU quarantine page table levels XSA-445, CVE-2023-46835 x86: BTC/SRSO fixes not fully effective XSA-446, CVE-2023-46836...

Fedora 38 : xen (2023-56901a79a1)

The remote Fedora 38 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-56901a79a1 advisory. x86/AMD: mismatch in IOMMU quarantine page table levels XSA-445, CVE-2023-46835 x86: BTC/SRSO fixes not fully effective XSA-446, CVE-2023-46836...

Xen: x86: BTC/SRSO Fixes Not Fully Effective (XSA-446)

The fixes for XSA-422 Branch Type Confusion and XSA-434 Speculative Return Stack Overflow are not IRQ-safe as it was believed that the mitigations were always operated in contexts with IRQs disabled. However due to an unanticipated interaction with XSA-254 Meltdown, a race condition exists whereb...

SUSE-SU-2023:4486-1 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...

SUSE-SU-2023:4485-1 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...

SUSE-SU-2023:4484-1 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...

SUSE-SU-2023:4476-1 Security update for xen

This update for xen fixes the following issues: - CVE-2023-20588: AMD CPU transitional execution leak via division by zero XSA-439 bsc1215474. - CVE-2023-34322: top-level shadow reference dropped too early for 64-bit PV guests XSA-438 bsc1215145. - CVE-2023-34325: Multiple vulnerabilities in...

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...