Unity Linux 20.1050e Security Update: kernel (UTSA-2025-989923)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989923 advisory. In the Linux kernel, the following vulnerability has been resolved: x86/speculation: Fill RSB on vmexit for IBRS Prevent RSB underflow/poisoning attacks with RSB...

EUVD-2022-54621

In the Linux kernel, the following vulnerability has been resolved: x86/speculation: Fill RSB on vmexit for IBRS Prevent RSB underflow/poisoning attacks with RSB. While at it, add a bunch of comments to attempt to document the current state of tribal knowledge about RSB attacks and what exactly i...

Linux Distros Unpatched Vulnerability : CVE-2023-1998

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The Linux kernel allows userspace processes to enable mitigations by calling prctl with PRSETSPECULATIONCTRL which disables the speculation feature as well as b...

CVE-2022-49611

In the Linux kernel, the following vulnerability has been resolved: x86/speculation: Fill RSB on vmexit for IBRS Prevent RSB underflow/poisoning attacks with RSB. While at it, add a bunch of comments to attempt to document the current state of tribal knowledge about RSB attacks and what exactly i...

CLSA-2023-1695046791 Fix of 7 CVEs

Bionic update: upstream stable patchset 2022-12-01 LP: 1998542 // CVE-2022-26373 - x86/speculation: Add RSB VM Exit protections Bionic update: upstream stable patchset 2022-12-01 LP: 1998542 - Revert "x86/cpu: Add a steppings field to struct x86cpuid" - x86/cpufeature: Add facility to check for m...

CBL Mariner 2.0 Security Update: kernel (CVE-2023-1998)

The version of kernel installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2023-1998 advisory. - The Linux kernel allows userspace processes to enable mitigations by calling prctl with PRSETSPECULATIONCTRL...

SUSE SLES12: kernel-azure / kernel-azure-base / kernel-azure-devel / etc (SUSE-SU-2023:2162-1)

The remote SUSE Linux SLES12 / SLESSAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:2162-1 advisory. The SUSE Linux Enterprise 12 SP5 AZURE kernel was updated to receive various security and bugfixes. The following security bugs wer...

SUSE SLES12: cluster-md-kmp-rt / dlm-kmp-rt / gfs2-kmp-rt / kernel-devel-rt / etc (SUSE-SU-2023:2156-1)

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:2156-1 advisory. The SUSE Linux Enterprise 12 SP5 RT kernel was updated to receive various security and bugfixes. The following security bugs were fixed: -...

Cross site scripting

The Linux kernel allows userspace processes to enable mitigations by calling prctl with PRSETSPECULATIONCTRL which disables the speculation feature as well as by using seccomp. We had noticed that on VMs of at least one major cloud provider, the kernel still left the victim process exposed to...

CVE-2023-1998 Spectre v2 SMT mitigations problem in Linux kernel

The Linux kernel allows userspace processes to enable mitigations by calling prctl with PRSETSPECULATIONCTRL which disables the speculation feature as well as by using seccomp. We had noticed that on VMs of at least one major cloud provider, the kernel still left the victim process exposed to...

CVE-2023-1998

CVE-2023-1998 affects the Linux kernel. Root cause: when using legacy IBRS, the IBRS bit is cleared on returning to userspace, disabling implicit STIBP and leaving some spectre-BTI protections ineffective; attackers on a local machine could exploit cross-thread branch target injection despite mit...

CVE-2023-1998

The Linux kernel allows userspace processes to enable mitigations by calling prctl with PRSETSPECULATIONCTRL which disables the speculation feature as well as by using seccomp. We had noticed that on VMs of at least one major cloud provider, the kernel still left the victim process exposed to...

CVE-2023-1998 Spectre v2 SMT mitigations problem in Linux kernel

The Linux kernel allows userspace processes to enable mitigations by calling prctl with PRSETSPECULATIONCTRL which disables the speculation feature as well as by using seccomp. We had noticed that on VMs of at least one major cloud provider, the kernel still left the victim process exposed to...

Linux Kernel 6.2 - Userspace Processes To Enable Mitigation

Exploit Title: Linux Kernel 6.2 - Userspace Processes To Enable Mitigation Exploit Author: nu11secur1ty CVE ID: CVE-2023-1998 Description Summary The Linux kernel allows userspace processes to enable mitigations by calling prctl with PRSETSPECULATIONCTRL which disables the speculation feature as...

Linux Kernel 6.2 - Userspace Processes To Enable Mitigation Exploit

Exploit Title: Linux Kernel 6.2 - Userspace Processes To Enable Mitigation Exploit Author: nu11secur1ty CVE ID: CVE-2023-1998 Description Summary The Linux kernel allows userspace processes to enable mitigations by calling prctl with PRSETSPECULATIONCTRL which disables the speculation feature as...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: drm: Fix potential null-ptr-deref due to drmmmodeconfiginit CVE-2022-50556 A double-free vulnerability was found in the handling of IORINGOPSOCKET operation with iouring on the Linux kernel. CVE-2023-1032 Due to a...

Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2023-015 (ALASKERNEL-5.15-2023-015)

The version of kernel installed on the remote host is prior to 5.15.102-61.139. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.15-2023-015 advisory. A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks. ...

Important: kernel

Issue Overview: Detected a few exploitable gadgets that could leak secret memory through a side-channel such as MDS as well as insufficient hardening of the usercopy functions against spectre-v1. CVE-2023-0458 Use After Free vulnerability in Linux kernel traffic control index filter tcindex allow...

RHEL 8 : kpatch-patch (RHSA-2020:3297)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:3297 advisory. This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel...

RHEL 8 : kpatch-patch (RHSA-2020:3073)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:3073 advisory. This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel...