pwn-collection

This repository contains a collection of CTF Capture The Flag challenges with writeups and exploit scripts. The challenges are categorized into three main areas: fmtstr32, heapchunkoverlap64, and pwn300. The fmtstr32 category contains challenges related to format string vulnerabilities, which all...

USN-3335-1 linux vulnerability

It was discovered that the stack guard page for processes in the Linux kernel was not sufficiently large enough to prevent overlapping with the heap. An attacker could leverage this with another vulnerability to execute arbitrary code and gain administrative privileges...

USN-3332-1 linux-raspi2 vulnerability

It was discovered that the stack guard page for processes in the Linux kernel was not sufficiently large enough to prevent overlapping with the heap. An attacker could leverage this with another vulnerability to execute arbitrary code and gain administrative privileges...

USN-3331-1 linux-aws vulnerability

It was discovered that the stack guard page for processes in the Linux kernel was not sufficiently large enough to prevent overlapping with the heap. An attacker could leverage this with another vulnerability to execute arbitrary code and gain administrative privileges...

USN-3330-1 linux-snapdragon vulnerability

It was discovered that the stack guard page for processes in the Linux kernel was not sufficiently large enough to prevent overlapping with the heap. An attacker could leverage this with another vulnerability to execute arbitrary code and gain administrative privileges...

USN-3329-1 linux-gke vulnerability

It was discovered that the stack guard page for processes in the Linux kernel was not sufficiently large enough to prevent overlapping with the heap. An attacker could leverage this with another vulnerability to execute arbitrary code and gain administrative privileges...

USN-3328-1 linux vulnerability

It was discovered that the stack guard page for processes in the Linux kernel was not sufficiently large enough to prevent overlapping with the heap. An attacker could leverage this with another vulnerability to execute arbitrary code and gain administrative privileges...

kernel: mm: keep a guard page below a grow-down stack segment

The doanonymouspage function in mm/memory.c in the Linux kernel before 2.6.27.52, 2.6.32.x before 2.6.32.19, 2.6.34.x before 2.6.34.4, and 2.6.35.x before 2.6.35.2 does not properly separate the stack and the heap, which allows context-dependent attackers to execute arbitrary code by writing to t...