CVE-2024-31142 x86: Incorrect logic for BTC/SRSO mitigations

Because of a logical error in XSA-407 Branch Type Confusion, the mitigation is not applied properly when it is intended to be used. XSA-434 Speculative Return Stack Overflow uses the same infrastructure, so is equally impacted. For more details, see: https://xenbits.xen.org/xsa/advisory-407.html...

CVE-2024-31142

CVE-2024-31142 concerns the Xen hypervisor. The issue stems from a logical error in XSA-407 (Branch Type Confusion); the mitigation is not applied as intended, and XSA-434 (Speculative Return Stack Overflow) uses the same infrastructure, making it equally impacted. Available connected sources des...

CVE-2024-31142 x86: Incorrect logic for BTC/SRSO mitigations

Because of a logical error in XSA-407 Branch Type Confusion, the mitigation is not applied properly when it is intended to be used. XSA-434 Speculative Return Stack Overflow uses the same infrastructure, so is equally impacted. For more details, see: https://xenbits.xen.org/xsa/advisory-407.html...

RHEL 5 : xsa218_xen (Unpatched Vulnerability)

The remote Redhat Enterprise Linux 5 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched. - xsa218 xen: Races in the grant table unmap code XSA-218 CVE-2017-10913 - The grant-table feature in Xen...

RHEL 5 : xsa224_xen (Unpatched Vulnerability)

The remote Redhat Enterprise Linux 5 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched. - xsa224 xen: grant table operations mishandle reference counts XSA-224 CVE-2017-10921 - The grant-table...

Fedora 40 : xen (2024-a46df5ba2f)

The remote Fedora 40 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2024-a46df5ba2f advisory. x86: Native Branch History Injection XSA-456, CVE-2024-2201 update to xen 4.18.2, remove patches now included upstream x86 HVM hypercalls may trigge...

Fedora 39 : xen (2024-4357ec611d)

The remote Fedora 39 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2024-4357ec611d advisory. x86: Native Branch History Injection XSA-456, CVE-2024-2201 update to xen 4.17.4, remove patches now included upstream rebase xen.gcc12.fixes.patch...

x86: Incorrect logic for BTC/SRSO mitigations

ISSUE DESCRIPTION Because of a logical error in XSA-407 Branch Type Confusion, the mitigation is not applied properly when it is intended to be used. XSA-434 Speculative Return Stack Overflow uses the same infrastructure, so is equally impacted. For more details, see:...

CVE-2021-47111

In the Linux kernel, the following vulnerability has been resolved: xen-netback: take a reference to the RX task thread Do this in order to prevent the task from being freed if the thread returns which can be triggered by the frontend before the call to kthreadstop done as part of the backend tea...

CVE-2021-47111

In the Linux kernel, the following vulnerability has been resolved: xen-netback: take a reference to the RX task thread Do this in order to prevent the task from being freed if the thread returns which can be triggered by the frontend before the call to kthreadstop done as part of the backend tea...

CVE-2021-47111

In the Linux kernel, the following vulnerability has been resolved: xen-netback: take a reference to the RX task thread Do this in order to prevent the task from being freed if the thread returns which can be triggered by the frontend before the call to kthreadstop done as part of the backend tea...

CVE-2021-47111

In the Linux kernel, the following vulnerability has been resolved: xen-netback: take a reference to the RX task thread Do this in order to prevent the task from being freed if the thread returns which can be triggered by the frontend before the call to kthreadstop done as part of the backend tea...

openSUSE: Security Advisory for xen (SUSE-SU-2023:4466-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 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-only ifdescription...

openSUSE: Security Advisory for the Linux Kernel (SUSE-SU-2023:3971-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 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-only ifdescription...

Fedora 38 : xen (2024-4b2cf8c375)

The remote Fedora 38 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2024-4b2cf8c375 advisory. arm32: The cache may not be properly cleaned/invalidated take two XSA-447, CVE-2023-46837 pci: phantom functions assigned to incorrect contexts...

SUSE-SU-2024:0270-1 Security update for xen

This update for xen fixes the following issues: - CVE-2023-46839: Fixed phantom functions assigned to incorrect contexts XSA-449 bsc1218851...

SUSE-SU-2024:0264-1 Security update for xen

This update for xen fixes the following issues: - CVE-2023-46839: Fixed phantom functions assigned to incorrect contexts XSA-449 bsc1218851...

CVE-2023-46836

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-2023-46837

Arm provides multiple helpers to clean & invalidate the cache for a given region. This is, for instance, used when allocating guest memory to ensure any writes such as the ones during scrubbing have reached memory before handing over the page to a guest. Unfortunately, the arithmetics in the...

CVE-2023-46836

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...