CVE-2023-0045

Bypassing Spectre-BTI User Space Mitigations on Linux This is a working document, please send us feedback if you think we got something wrong or if we missed a citation Version 1.0 José Oliveira esoj Rodrigo Branco BSDaemon Introduction When testing the success rate of Spectre-BTI attacks, we...

CVE-2023-0045

Bypassing Spectre-BTI User Space Mitigations on Linux This is a working document, please send us feedback if you think we got something wrong or if we missed a citation Version 1.0 José Oliveira esoj Rodrigo Branco BSDaemon Introduction When testing the success rate of Spectre-BTI attacks, we...

CVE-2023-53634 bpf, arm64: Fixed a BTI error on returning to patched function

In the Linux kernel, the following vulnerability has been resolved: bpf, arm64: Fixed a BTI error on returning to patched function When BPFTRAMPFCALLORIG is set, BPF trampoline uses BLR to jump back to the instruction next to call site to call the patched function. For BTI-enabled kernel, the...

EUVD-2006-7141

Malware in sbrugna...

CVE-2023-53634: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf, arm64: Fixed a BTI error on returning to patched function When BPFTRAMPFCALLORIG is set, BPF trampoline uses BLR to jump back to the instruction next to call site to call the patched function. For BTI-enabled kernel, the...

EUVD-2023-24178

Malicious code in bioql PyPI...

openSUSE: Security Advisory for chromium (openSUSE-SU-2022:10086-1)

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...

kernel: Spectre v2 SMT mitigations problem

It was found that the Linux Kernel still left the victim process exposed to attacks in some cases even after enabling the spectre-BTI mitigation with prctl. The kernel failed to protect applications that attempted to protect against Spectre v2 leaving them open to attack from other processes...

Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel (Intel IoTG) vulnerabilities (USN-6207-1)

The remote Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6207-1 advisory. It was discovered that the TUN/TAP driver in the Linux kernel did not properly initialize socket data. A local attacker could use this to cau...

bti-sports.com Cross Site Scripting vulnerability OBB-3471145

Following the coordinated and responsible vulnerability disclosure guidelines of the ISO 29147 standard, Open Bug Bounty has: a. verified the vulnerability and confirmed its existence; b. notified the website operator about its existence. Technical details of the vulnerability are currently hidde...

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: 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: -...

SUSE SLED15: cluster-md-kmp-64kb / cluster-md-kmp-default / dlm-kmp-64kb / etc (SUSE-SU-2023:2140-1)

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-2023:2140-1 advisory. The SUSE Linux Enterprise 15 SP4 kernel was updated to receive various security and bugfixes. Th...

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...

CVE-2023-1998: Non-Transparent Sharing of Microarchitectural Resources

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

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...