Som1Lse

Fuzzing CDT: Finding, reproducing, and reporting bugs

Introduction

This is a tutorial on how to write a fuzzer for a non-trivial real-world library, namely Artem Amirkhanov's CDT. It is a library for computing Constrained Delaunay Triangulations (CDTs, hence the name of the library). We will be working from the 9d99b32ae56b26cd2781678dc4405c98b8679a9f commit, since that is what I originally wrote the fuzzer for, and that way, we will be able to rediscover the same bugs I found back then.

If you want to follow along, clone the library using

$ git clone https://github.com/artem-ogre/CDT
$ cd CDT

htfy96

C++ Build profiles for 2024 projects

Standard development profile

This profile achieves 50% - 80% release profile performance, while also provides a reasonable amount of safety checks and debugging support. This should also be the profile for your CI build.

Compilation flags

-Og -Wall -Wextra -D_FORTIFY_SOURCE=2 -fstack-protector-strong -g -D_GLIBCXX_ASSERTIONS

Meltwin

The process is pretty similar to the standard installation from source except for some fixes that you will have to make during the installation. I will keep the same header so you can keep a track on both guide at the same time (follow the official website for more explication, I will only write the steps to make).

1 - Prerequisites

1.1 - Installing bootstrap dependencies

To install bootstrap dependencies

quenhus

Moved to repo: /quenhus/uBlock-Origin-dev-filter

In order to keep filters up to date, please use this repo.

mrlnc

So you're using free5gc (hence stuck on linux 5.0.0-23-generic) and want to use wireguard VPN.

tl;dr you need wireguard-linux-compat tag v1.0.20200520

git clone https://git.zx2c4.com/wireguard-linux-compat
cd wireguard-linux-compat
git checkout v1.0.20200520
cd ..
make -C wireguard-linux-compat/src -j$(nproc)
make -C wireguard-linux-compat/src -j$(nproc) install

agutenkunst

Use Sourcetrail with ROS

1. Build your workspace with the required cmake flag

Building your workspace with -DCMAKE_EXPORT_COMPILE_COMMANDS=ON which will create a file compile_commands.json in your build/<pkg> directory containing all compiler calls.

colcon build --cmake-args -DCMAKE_EXPORT_COMPILE_COMMANDS=ON

2. Add the project to sourcetrail

See images below

ggerganov

// Auto-pilot for docking with the International Space Station
//
// The program uses Artificial Intelligence and Decision Trees (i.e. basic kinematics and a bunch of if statements)
// to perform docking with the ISS from any starting position.
//
// To use it:
// - open the SpaceX simulation website: https://iss-sim.spacex.com/
// - open the Developer's console and paste the contents of this file
//
// Demo: https://youtu.be/jWQQH2_UGLw

jen20

#!/bin/bash

[ $(id -u) != "0" ] && exec sudo "$0" "$@"
echo -e " \e[94mInstalling Jetbrains Toolbox\e[39m"
echo ""

function getLatestUrl() {
USER_AGENT=('User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36')

URL=$(curl 'https://data.services.jetbrains.com//products/releases?code=TBA&latest=true&type=release' -H 'Origin: https://www.jetbrains.com' -H 'Accept-Encoding: gzip, deflate, br' -H 'Accept-Language: en-US,en;q=0.8' -H "${USER_AGENT[@]}" -H 'Accept: application/json, text/javascript, */*; q=0.01' -H 'Referer: https://www.jetbrains.com/toolbox/download/' -H 'Connection: keep-alive' -H 'DNT: 1' --compressed | grep -Po '"linux":.*?[^\\]",' | awk -F ':' '{print $3,":"$4}'| sed 's/[", ]//g')

maxidorius

Notes on privacy and data collection of Matrix.org

---

This version of the document is no longer canonical. You can find the canonical version hosted at Gitlab and Github.

PART 2 IS OUT, INCLUDING THE DISCLOSURE OF A GLOBAL FEDERATION DATA LEAK, AND THE ANATOMY OF A GDPR DATA REQUEST HANDLED BY MATRIX.ORG. SEE THE REPOS ABOVE.

JoeyBurzynski

58 bytes of CSS to look great nearly everywhere

When making this website, i wanted a simple, reasonable way to make it look good on most displays. Not counting any minimization techniques, the following 58 bytes worked well for me:

main {
  max-width: 38rem;
  padding: 2rem;
  margin: auto;
}