how2heap

Educational Heap Exploitation This repo is for learning various heap exploitation techniques. We use Ubuntu's Libc releases as the gold-standard. Each technique is verified to work on corresponding Ubuntu releases. You can run apt source libc6 to download the source code of the Libc you are using...

SSH-Remote-Code-Execution

SSH Remote Code Execution SSH Zero-Day | Hecho por ClumsyLulz y Taylor Christian Newsome Resumen Este repositorio contiene un programa en C que acepta parámetros de entrada y genera un paquete para enviarlo a un servidor mediante el protocolo SSH. El programa asigna un búfer para almacenar los...

one-multiply-too-many-cve-2026-70638-llama-cpp-android-jni-integer-overflow

CVE-2026-70638 - Desbordamiento de enteros JNI de LLaMA-Android en llama.cpp PoC complementario para el artículo de Hunt-Benito "Una multiplicación de más: CVE-2026-70638 — Desbordamiento de enteros en la asignación de montón JNI de Android de llama.cpp" →...

Weggli_rules_SSTIC2023

Here is a curated list of weggli queries You can read them and use them one by one, or launch them by batch: Usage: $ bash dangerousfunctions.qry code.c $ bash mallocoverflow.qry -e cc sourcedir/ There is threee categories: 1. dangerous functions: such as strcpy, system, etc.. 2. stack : tries to...

SUSE CVE-2026-97920

In the Linux kernel, the following vulnerability has been resolved: tracing: Keep the entry count when the histogram stats allocation fails printentries uses nentries both as the number of sort entries and as its own return value, so the -ENOMEM it stores when the stats allocation fails overwrite...

CVE-2026-102808

PX4 Autopilot versions through 1.17.0 are vulnerable to a NULL pointer dereference within the sd_stress command. The root cause is the lack of validation for the -b byte count parameter before it is processed by malloc() and memset(). An attacker with shell access, which can be obtained via MAVLi...

CVE-2026-102808 PX4 Autopilot through 1.17.0 NULL Pointer Dereference via sd_stress

PX4 Autopilot through 1.17.0 contains a NULL pointer dereference vulnerability in the sdstress command where the -b byte count parameter is parsed without validation before being passed to malloc and memset. Attackers with shell access, including through MAVLink, can supply invalid byte count...

CVE-2026-97920

The Linux kernel contains a vulnerability where the print_entries() function incorrectly handles memory allocation failures. When a histogram stats allocation fails, the variable n_entries is overwritten with -ENOMEM. Because tracing_map_destroy_sort_entries() treats this value as an unsigned int...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: libtar (UTSA-2026-054042)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-054042 advisory. An attacker who submits a crafted tar file with size in header struct being 0 may be able to trigger an calling of malloc0 for a variable gnulongname, causing an...

PT-2026-95909

Name of the Vulnerable Software and Affected Versions Kamailio versions prior to 6.0.8 Description A heap-based buffer overflow can be triggered remotely within the CDP Diameter Receiver component. The issue resides in the shm malloc function located in the src/modules/cdp/receiver.c file. A...

Astra Linux – Vulnerability in htmldoc

There is a vulnerability in htmldoc 1.9.16. In the imageloadjpeg function, when image.cxx calls malloc, ‘img-width’ and ‘img-height’ are too large to prevent an integer overflow. As a result, the malloc function may return a heap block smaller than expected, causing a buffer overflow/Address...

Astra Linux – Vulnerability in curl

There is a vulnerability in curl v7.88.0 where resource allocation without limits or throttling exists. This vulnerability stems from the “chained” HTTP compression algorithms. This means that a server’s response can be compressed multiple times, possibly using different algorithms. The number of...

Astra Linux – Vulnerability in ffmpeg, ffmpeg5

There is a NULL pointer dereference vulnerability in FFmpeg’s Firequalizer filter libavfilter/affirequalizer.c. This vulnerability arises due to a missing check on the return value of avmallocarray in the configinput function. An attacker could exploit this vulnerability by tricking a victim into...

Astra Linux – Vulnerability in klibc

A issue was discovered in klibc before version 2.0.9. Additions in the malloc function may lead to an integer overflow, followed by a heap buffer overflow...

Astra Linux – Vulnerability in ffmpeg5

FFmpeg v.n6.1-3-g466799d4f5 allows for memory consumption when using the colorcorrect filter, specifically in the avmalloc function located at line 105:9 of the libavutil/mem.c file...

Astra Linux – Vulnerability in hiredis

In libhiredis.a under hiredis through version 0.14.0, async.c and dict.c allow a NULL pointer dereferencing because the return values of malloc are unchecked...

Astra Linux – Vulnerability in Redis

A heap overflow issue was discovered in Redis versions prior to 5.0.10, before 6.0.9, and before 6.2.0, when using a heap allocator other than jemalloc or glibc’s malloc function. This issue could lead to out-of-bound writing or the crash of the process. Essentially, this flaw does not affect the...

PT-2026-88233

In LimitRealloc of malloc limit.cpp, there is a possible use after free due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation...

CVE-2026-18370 Heap-based buffer overflow in entr

entr is vulnerable to Heap-based buffer overflow in runutility function. The function allocates a fixed-size heap buffer using mallocARGMAX and copies command-line arguments into it. It advances the destination pointer based on the return value of strlcpy, which returns the total length of the...

CVE-2026-18370

entr is vulnerable to Heap-based buffer overflow in runutility function. The function allocates a fixed-size heap buffer using mallocARGMAX and copies command-line arguments into it. It advances the destination pointer based on the return value of strlcpy, which returns the total length of the...