ssbd-tools

Tools for exercising Speculative Store Bypass Disable The ssbd-tools project is a collection of programs that makes use of the Speculative Store Bypass Disable SSBD functionality provided in x86 processors. SSBD is a processor based mitigation for the Speculative Store Bypass attack that is...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-004240)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004240 advisory. A logic bug flaw was found in Linux kernel before 5.8-rc1 in the implementation of SSBD. A bug in the logic handling allows an attacker with a local account to disab...

EUVD-2020-3181

Malware in sbrugna...

EUVD-2022-45411

Malicious code in bioql PyPI...

Oracle Linux 8 : kernel (ELSA-2020-3010)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-3010 advisory. - vfio vfio/pci: Fix SR-IOV VF handling with MMIO blocking Alex Williamson 1837309 1837310 CVE-2020-12888 - x86 kvm: Clean up host's steal time structu...

SUSE SLED15: xen / xen-devel / xen-doc-html / xen-libs / xen-libs-32bit / etc (SUSE-SU-2023:2535-1)

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-2023:2535-1 advisory. Security fixes: - CVE-2022-42336: Fix an issue where guests configuring AMD Speculative Store...

Thread Counter Overflow

Xen is vulnerable to a Thread Counter Overflow. The vulnerability arises from the mishandling of guest SSBD Speculative Store Bypass Disable selection on AMD hardware. This mishandling enables a guest to underflow or overflow the thread counter. Each write to VIRTSPECCTRL.SSBD by the guest is...

SUSE CVE-2022-42336

Mishandling of guest SSBD selection on AMD hardware The current logic to set SSBD on AMD Family 17h and Hygon Family 18h processors requires that the setting of SSBD is coordinated at a core level, as the setting is shared between threads. Logic was introduced to keep track of how many threads...

ALPINE-CVE-2022-42336

Mishandling of guest SSBD selection on AMD hardware The current logic to set SSBD on AMD Family 17h and Hygon Family 18h processors requires that the setting of SSBD is coordinated at a core level, as the setting is shared between threads. Logic was introduced to keep track of how many threads...

CVE-2022-42336

Mishandling of guest SSBD selection on AMD hardware The current logic to set SSBD on AMD Family 17h and Hygon Family 18h processors requires that the setting of SSBD is coordinated at a core level, as the setting is shared between threads. Logic was introduced to keep track of how many threads...

CVE-2022-42336

Mishandling of guest SSBD selection on AMD hardware The current logic to set SSBD on AMD Family 17h and Hygon Family 18h processors requires that the setting of SSBD is coordinated at a core level, as the setting is shared between threads. Logic was introduced to keep track of how many threads...

CVE-2022-42336

Mishandling of guest SSBD selection on AMD hardware The current logic to set SSBD on AMD Family 17h and Hygon Family 18h processors requires that the setting of SSBD is coordinated at a core level, as the setting is shared between threads. Logic was introduced to keep track of how many threads...

Buffer overflow

Mishandling of guest SSBD selection on AMD hardware The current logic to set SSBD on AMD Family 17h and Hygon Family 18h processors requires that the setting of SSBD is coordinated at a core level, as the setting is shared between threads. Logic was introduced to keep track of how many threads...

UBUNTU-CVE-2022-42336

Mishandling of guest SSBD selection on AMD hardware The current logic to set SSBD on AMD Family 17h and Hygon Family 18h processors requires that the setting of SSBD is coordinated at a core level, as the setting is shared between threads. Logic was introduced to keep track of how many threads...

CVE-2022-42336

Mishandling of guest SSBD selection on AMD hardware The current logic to set SSBD on AMD Family 17h and Hygon Family 18h processors requires that the setting of SSBD is coordinated at a core level, as the setting is shared between threads. Logic was introduced to keep track of how many threads...

CVE-2022-42336

Mishandling of guest SSBD selection on AMD hardware The current logic to set SSBD on AMD Family 17h and Hygon Family 18h processors requires that the setting of SSBD is coordinated at a core level, as the setting is shared between threads. Logic was introduced to keep track of how many threads...

CVE-2022-42336: Undefined Security Weakness

Mishandling of guest SSBD selection on AMD hardware The current logic to set SSBD on AMD Family 17h and Hygon Family 18h processors requires that the setting of SSBD is coordinated at a core level, as the setting is shared between threads. Logic was introduced to keep track of how many threads...

CVE-2022-42336

The CVE-2022-42336 issue affects Xen on AMD Family 17h and Hygon Family 18h CPUs, where SSBD activation is coordinated across threads via a per-core counter. The vulnerability arises when guest writes to VIRT_SPEC_CTRL.SSBD are propagated to the helper that tracks per-core SSBD activity, causing ...

CVE-2022-42336

Mishandling of guest SSBD selection on AMD hardware The current logic to set SSBD on AMD Family 17h and Hygon Family 18h processors requires that the setting of SSBD is coordinated at a core level, as the setting is shared between threads. Logic was introduced to keep track of how many threads...

Mishandling of guest SSBD selection on AMD hardware

ISSUE DESCRIPTION The current logic to set SSBD on AMD Family 17h and Hygon Family 18h processors requires that the setting of SSBD is coordinated at a core level, as the setting is shared between threads. Logic was introduced to keep track of how many threads require SSBD active in order to...