unicorn/fuzz_emu_x86_32: Crash in helper_pcmpestrm_xmm

Project: https://github.com/unicorn-engine/unicorn.git Detailed report: https://oss-fuzz.com/testcase?key=5651790742159360 Project: unicorn Fuzzer: aflunicornfuzzemux8632 Fuzz target binary: fuzzemux8632 Job Type: aflasanunicorn Platform Id: linux Crash Type: UNKNOWN READ Crash Address:...

Block.one: [FG-VD-18-125] Buffer Overflow Vulnerability in Latest EOS's EOSIO.WASMSDK Repository

Hello Block.One / EOS Product Security Team, Good Afternoon. There exists a Memory Corruption vulnerability in the latest EOS WASMSDK Library. The PoC.wasm file is attached along with this report. Reproduction Steps: - 1 Fetch latest EOS WASMSDK repsository from...

Internet Bug Bounty: Heap Buffer Overflow (READ: 1786) in exif_iif_add_value

The exifreaddata function is prone to an out of bounds read while processing crafted JPG data. This was discovered using AFL. It can be reproduced as follows: USEZENDALLOC=0 php -r...

imagemagick/encoder_mvg_fuzzer: Heap-buffer-overflow in TracePath

Project: https://github.com/imagemagick/imagemagick.git Detailed report: https://oss-fuzz.com/testcase?key=5708013622001664 Project: imagemagick Fuzzer: aflimagemagickencodermvgfuzzer Fuzz target binary: encodermvgfuzzer Job Type: aflasanimagemagick Platform Id: linux Crash Type:...

macOS - sysctl_vfs_generic_conf Stack Leak Through Struct Padding

macOS - sysctlvfsgenericconf Stack Leak Through Struct Padding / The sysctls vfs.generic.conf. are handled by sysctlvfsgenericconf, which is implemented as follows: static int sysctlvfsgenericconf SYSCTLHANDLERARGS int name, namelen; struct vfstable vfsp; struct vfsconf vfsc; voidoidp; name = arg...

macOS - 'sysctl_vfs_generic_conf' Stack Leak Through Struct Padding

/ The sysctls vfs.generic.conf. are handled by sysctlvfsgenericconf, which is implemented as follows: static int sysctlvfsgenericconf SYSCTLHANDLERARGS int name, namelen; struct vfstable vfsp; struct vfsconf vfsc; voidoidp; name = arg1; namelen = arg2; check for namelen==1 mountlistlock; for vfsp...

Linux - mincore() Uninitialized Kernel Heap Page Disclosure Exploit

Linux mincore discloses uninitialized kernel heap pages. When walkpagerange is used on a VMHUGETLB VMA, callbacks from the mmwalk structure are only invoked for present pages. However, domincore assumes that it will always get callbacks for all pages in the range passed to walkpagerange, and when...

See my how-to the Apache fuzzing and dig to a value of 1500 knife of vulnerability-vulnerability warning-the black bar safety net

Target In the AFL in the view of the Apache httpd server's crash logs, I found a lot of problems. For example, some crash testing with example in fuzz testing tools internal collapse, but also affect the test program stability. In this article, I will talk to you to explain the test case to crash...

gdal: Heap-buffer-overflow in CADBuffer::ReadCHAR

Project: https://github.com/OSGeo/gdal.git Detailed report: https://oss-fuzz.com/testcase?key=6298144394444800 Project: gdal Fuzzer: aflgdalcadfuzzer Fuzz target binary: cadfuzzer Job Type: aflasangdal Platform Id: linux Crash Type: Heap-buffer-overflow READ 1 Crash Address: 0x62700000350e Crash...

LibTIFF - tif_jbig.c Denial of Service

LibTIFF - tifjbig.c Denial of Service Source: http://bugzilla.maptools.org/showbug.cgi?id=2706 Triggered by “./tiff2ps $POC” or “./tiff2pdf $POC” Triggered by “./tiff2ps $POC” or “./tiff2pdf $POC” The asan debug information is below: $./tiff2ps $POC...

LibTIFF - 'tif_jbig.c' Denial of Service

Source: http://bugzilla.maptools.org/showbug.cgi?id=2706 Triggered by “./tiff2ps $POC” or “./tiff2pdf $POC” Triggered by “./tiff2ps $POC” or “./tiff2pdf $POC” The asan debug information is below: $./tiff2ps $POC ================================================================= ==26627==ERROR:...

Mapbox: null pointer dereference and segfault in tile-count-merge

This crash was triggered with 642f773 while fuzzing tile-count-merge with AFL on Debian 8 x64. ./tile-count-merge -o /dev/null test000 ASAN:SIGSEGV ================================================================= ==10201==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 pc...

mlbfarm.com XSS vulnerability

Open Bug Bounty ID: OBB-254302 Description| Value ---|--- Affected Website:| mlbfarm.com Open Bug Bounty Program:| Create your bounty program now. It's open and free. Vulnerable Application:| Custom Code Vulnerability Type:| XSS Cross Site Scripting / CWE-79 CVSSv3 Score:| 6.1...

Alpine Linux: From vulnerability discovery to code execution

I’ve recently uncovered two critical vulnerabilities in Alpine Linux’s package manager, assigned CVE-2017-9669 and CVE-2017-9671. These vulnerabilities could potentially lead to an attacker executing malicious code on your machines, if you are using Alpine knowingly or implicitly. Alpine Linux is...

libetpan -- null dereference vulnerability in MIME parsing component

rwhitworth reports: I was using American Fuzzy Lop afl-fuzz to fuzz input to the mime-parse test program. Is fixing these crashes something you're interested in? The input files can be found here: https://github.com/rwhitworth/libetpan-fuzz/. The files can be executed as ./mime-parse idfilename t...

shopify-scripts: heap-buffer-overflow (read outside of buffer) in mrb_vm_exec()

Triggered in 3231219 14 April 2017. Compiled with afl-gcc + asan. ./mirb test000 ==10555==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60200001c920 at pc 0x52be2c bp 0x7ffe6751ada0 sp 0x7ffe6751ad98 READ of size 16 at 0x60200001c920 thread T0 0 0x52be2b in mrbvmexec...

Dropbox: avrecode: global-buffer-overflow in get_neighbor()

Source: https://github.com/dropbox/avrecode Version: 2de743d Built using the Github instructions with afl-gcc and ASAN. Feeding this malformed .mp4 to recode triggers a global buffer overflow. ./recode roundtrip test003.mp4 mov,mp4,m4a,3gp,3g2,mj2 @ 0x61b00001f180 Protocol name not provided, cann...

LamaHub 0.0.6.2 - Remote Buffer Overflow

LamaHub 0.0.6.2 - Remote Buffer Overflow Exploit Title: LamaHub-0.0.6.2 BufferOverflow Date: 09/09/09 Exploit Author: Pi3rrot Vendor Homepage: http://lamahub.sourceforge.net/ Software Link: http://ovh.dl.sourceforge.net/sourceforge/lamahub/LamaHub-0.0.6.2.tar.gz Version: 0.0.6.2 Tested on: Debian...

LamaHub 0.0.6.2 - Buffer Overflow

Exploit for linux platform in category remote exploits Exploit Title: LamaHub-0.0.6.2 BufferOverflow Date: 09/09/09 Exploit Author: Pi3rrot Vendor Homepage: http://lamahub.sourceforge.net/ Software Link: http://ovh.dl.sourceforge.net/sourceforge/lamahub/LamaHub-0.0.6.2.tar.gz Version: 0.0.6.2...

LamaHub 0.0.6.2 - Remote Buffer Overflow

Exploit Title: LamaHub-0.0.6.2 BufferOverflow Date: 09/09/09 Exploit Author: Pi3rrot Vendor Homepage: http://lamahub.sourceforge.net/ Software Link: http://ovh.dl.sourceforge.net/sourceforge/lamahub/LamaHub-0.0.6.2.tar.gz Version: 0.0.6.2 Tested on: Debian 8 32bits This exploit may crash the...