NASM 0.98.x Error Preprocessor Directive Buffer Overflow Vulnerability

No description provided by source. source: http://www.securityfocus.com/bid/11991/info NASM is prone to a buffer overflow. This condition is exposed when the application attempts to assemble a source file that contains malformed '%error' preprocessor directive arguments. Since the source file may...

NASM 2.0 - 'ppscan()' Off-By-One Buffer Overflow Vulnerability

No description provided by source. source: http://www.securityfocus.com/bid/29656/info NASM is prone to an off-by-one buffer-overflow vulnerability because the application fails to perform adequate boundary checks on user-supplied data. Successfully exploiting this issue will allow attackers to...

Simple 8-bit Assembler Simulator

A simulator which provides a simplified assembler syntax based on NASM and is simulating a x86 like cpu. Press Help inside the simulator to see an overview about the supported instructions. Features 8-bit CPU 4 general purpose registers 256 bytes of memory Console output Simple 8-bit Assembler...

linux/x86-64 connect-back shell with netcat 109 bytes

Title : Shellcode linux/x86-64 connect-back shell with netcat Author : Gaussillusion Len : 109 byte In the file there is the shellcode in asm and the bytecode. Gaussillusion. ; Title: Shellcode linux/x86-64 connect back shell ; Author : Gaussillusion ; Len : 109 byte ; Language : Nasm ;syscall:...

linux/x86 - nc -lvve/bin/sh -p13377 - 62 bytes

linux x86 nc -lvve/bin/sh -p13377 shellcode This shellcode will listen on port 13377 using netcat and give /bin/sh to connecting attacker Author: Anonymous Site: http://chaossecurity.wordpress.com/ Here is code written in NASM ///////////////////////////// section .text global start start: xor...

Design/Logic Flaw

The emsyscall function in arch/x86/kvm/emulate.c in the KVM implementation in the Linux kernel before 3.2.14 does not properly handle the 0f05 aka syscall opcode, which allows guest OS users to cause a denial of service guest OS crash via a crafted application, as demonstrated by an NASM file...

CVE-2012-0045

CVE-2012-0045 relates to the Linux kernel KVM 32-bit syscall emulation. A flaw in arch/x86/kvm/emulate.c where the 0f05 (syscall) opcode is not handled correctly allows a user in a 32-bit guest to crash the guest OS (denial of service). Public references in the provided connected documents confir...

CVE-2012-0045

The emsyscall function in arch/x86/kvm/emulate.c in the KVM implementation in the Linux kernel before 3.2.14 does not properly handle the 0f05 aka syscall opcode, which allows guest OS users to cause a denial of service guest OS crash via a crafted application, as demonstrated by an NASM file...

Основы написания Win-шеллкода

В этой статье речь пойдет о написании простого шеллкода под Windows платформу. Статья является начальным этапом цикла статей, которые я, опираясь на материалы и труды зарубежных специалистов в данной области, планирую написать. Эта статья не насыщена всеобъемлющей информацией, однако её цель -...

MDVA-2009:065 : nasm

Nasm would crash under certain conditions. This update replaces the patch that introduced the crash. %NASLMINLEVEL 70300 @DEPRECATED@ This script has been deprecated as the associated patch is not currently a security fix. Disabled on 2012/09/06. C Tenable Network Security, Inc. This script was...

linux/x86-64 execve ("/sbin/iptables", ["/sbin/iptables", "-F"], NULL)

Exploit for linux/x86-64 platform in category shellcode ================================================================================= linux/x86-64 execve "/sbin/iptables", "/sbin/iptables", "-F", NULL - 49 bytes =================================================================================...

CVE-2008-7177

Buffer overflow in the listing module in Netwide Assembler NASM before 2.03.01 has unknown impact and attack vectors, a different vulnerability than CVE-2008-2719...

CVE-2008-7177

Buffer overflow in the listing module in Netwide Assembler NASM before 2.03.01 has unknown impact and attack vectors, a different vulnerability than CVE-2008-2719...

Buffer overflow

Buffer overflow in the listing module in Netwide Assembler NASM before 2.03.01 has unknown impact and attack vectors, a different vulnerability than CVE-2008-2719...

CVE-2008-7177

CVE-2008-7177: Buffer overflow in NASM (Netwide Assembler) listing module prior to 2.03.01. The affected component is NASM’s listing functionality; root cause is a buffer overflow. Public documents describe impact as unknown and attack vectors as unknown; no concrete exploit details are provided ...

CVE-2008-7177

Buffer overflow in the listing module in Netwide Assembler NASM before 2.03.01 has unknown impact and attack vectors, a different vulnerability than CVE-2008-2719...

CVE-2008-7177: Improper Restriction of Operations within the Bounds of a Memory Buffer

Buffer overflow in the listing module in Netwide Assembler NASM before 2.03.01 has unknown impact and attack vectors, a different vulnerability than CVE-2008-2719...

netbsd/x86 kill all processes shellcode 23 bytes

No description provided by source. / netbsd/x86 kill all processes shellcode this shellcode is using syscall number 37 or 0x25 37 STD int syskillint pid, int signum; here is assembler code using intel syntaxe and NASM --------------begin----------- section .note.netbsd.ident dd 0x07,0x04,0x01 db...

NetBSD x86 Kill All Processes Shellcode

/ netbsd/x86 kill all processes shellcode author REMOVED AT REQUEST OF AUTHOR contact REMOVED AT REQUEST OF AUTHOR this shellcode is using syscall number 37 or 0x25 37 STD int syskillint pid, int signum; here is assembler code using intel syntaxe and NASM --------------begin----------- section...

netbsd/x86 kill all processes shellcode 23 bytes

Exploit for netbsd/x86 platform in category shellcode ================================================ netbsd/x86 kill all processes shellcode 23 bytes ================================================ / netbsd/x86 kill all processes shellcode this shellcode is using syscall number 37 or 0x25 37 S...