CVE-2021-33624

Proof of Concept for CVE-2021-33624 compile with gcc -pthread -o bpfspectretypeconfusion bpfspectretypeconfusion.c -Wall -ggdb -std=gnu99 execute with sudo ./bpfspectretypeconfusion 1 2 ffffffffa4925620 0x10 where 1 and 2 are CPU threads which run on two distinct hardware cores, ffffffffa4925620 ...

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...

Attacker-Group-Predictor

Attacker-Group-Predictor The tool predicts attacker groups from techniques and softwares used. It searches based on the MITRE ATT&CK™ framework How it works? 1- Collect data from https://attack.mitre.org/ about attacker groups 2- Get data from user about attack 3- Compare data and create result...

Jump-over-ASLR-BTB

Branch Predictors & ASLR Author: Byte Reaper Description This repository contains research C implementation that demonstrates concepts related to branch predictors, speculative execution, and cache-based side channels in the context of address space layout randomization ASLR. Requirements : Linux...

kernel security, bug fix, and enhancement update

6.12.0-211.65.1 - Add new Oracle Linux Driver Signing key 1 certificate Orabug: 37985782 - Disable UKI signing Orabug: 36571828 - Update Oracle Linux certificates Kevin Lyons - Disable signing for aarch64 Ilya Okomin - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list...

spectre-attack-example

Spectre Attack Example January 2, 2018 CVE-2017-5753 and CVE-2017-5715 "Spectre" exploit example What is this? We place the text "The Magic Words are Squeamish Ossifrage." in memory, and then we attempt to read it using the vulnerability. If the system is vulnerable, you will see the same text on...

Astra Linux – Vulnerability in Intel Microcode

The non-transparent sharing of return predictor targets between contexts in some Intel processors may allow an authorized user to potentially enable information disclosure through local access...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

The non-transparent sharing of return predictor targets between contexts in some Intel processors may allow an authorized user to potentially enable information disclosure through local access...

Astra Linux – Vulnerability in Linux 5.15, Linux

Aliases in the branch predictor may cause some AMD processors to predict the wrong branch type, potentially leading to information disclosure...

Astra Linux – Vulnerability in Intel Microcode

The exposure of sensitive information due to shared microarchitectural predictor states, which affect transient execution for some IntelR Core™ processors 10th generation, may allow an authenticated user to potentially disclose information through local access...

Astra Linux – Vulnerability in Intel Microcode

The exposure of sensitive information due to shared microarchitectural predictor states, which affect transient execution in the indirect branch predictors of certain Intel processors, may allow an authenticated user to potentially disclose information through local access...

PerSpectron: Detecting Invariant Footprints of Microarchitectural Attacks with Perceptron

Detecting microarchitectural attacks is critical given their proliferation in recent years. Many of these attacks exhibit intrinsic behaviors essential to the nature of their operation, such as creating contention or misspeculation. This study systematically investigates the microarchitectural...

PT-2026-98704

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the BPF Berkeley Packet Filter subsystem where the is branch taken function fails to distinguish between BPF JMP and BPF JMP32 comparisons. This leads to incorrect...

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Apache PDFBox version 3.0.8 is prone to a denial of service condition caused by a disproportionate heap allocation in the Flate decode PNG predictor path. When a stream is filtered with FlateDecode and a predictor is declared, PDFBox sizes an internal decoding buffer directly from the PDF-supplie...

Apache PDFBox 3.0.8 Flate PNG Predictor Disproportionate Heap Allocation DoS

Summary The Apache PDFBox library is an open source Java tool for working with PDF documents. This project allows creation of new PDF documents, manipulation of existing documents and the ability to extract content from documents. Apache PDFBox also includes several command-line utilities...

Astra Linux – Vulnerability in Linux, Linux 5.10

The non-transparent sharing of the branch predictor within the context of some Intel processors may allow an authorized user to potentially enable information disclosure through local access...

Astra Linux – Vulnerability in Linux, Linux 5.10

The non-transparent sharing of branch predictor selectors between contexts in some Intel processors may allow an authorized user to potentially enable information disclosure through local access...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

The current implementation of the prctl syscall does not issue an IBPB immediately during the syscall. The ibprctlset function updates the Thread Information Flags TIFs for the task and updates the SPECCTRL MSR in the function speculationctrlupdate, but the IBPB is only issued at the next schedul...

ROS-20260904-73-0001

The vulnerabilities of the Branch Target Buffer BTB and Indirect Branch Predictor IBP in Intel microprogramming devices stem from the state of the race within the pipeline. Exploiting these vulnerabilities can allow attackers to disclose protected information by executing specially crafted...

TONTOU: On the Exploitability of Time-of-Neutralization to Time-of-Use Windows

Recently deployed Spectre v2 mitigations neutralize branch predictor state when switching privilege contexts or immediately prior to indirect branch execution, either through domain isolation or sanitization. These defenses assume that subsequent branch predictor behavior remains free from attack...