Heap-based Buffer Overflow in vim/vim

Description Greetings, A Heap-based Buffer Overflow issue was discovered in Vim. The POC file is reduced to the absolute minimum to reproduce the problem. Please see sanitizer output and the "trimmed" POC file link below. System info OS version : Ubuntu 20.04.2 LTS + Clang 12 with ASan Vim Versio...

Mozilla Firefox Security Advisory (MFSA2013-100) - Linux

This host is missing a security update for Mozilla Firefox. Copyright C 2021 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; y...

Heap-based Buffer Overflow in zyantific/zydis

As discussed in the report at https://www.huntr.dev/bounties/96b0a482-7041-45b1-9327-c6a4a8f32d3a/, I am re-opening the report here for proper tracking. Description Hello, we hope you're doing well during these challenging times. Whilst testing zydis built from commit 077b185 with Clang12 + ASan ...

Use of Uninitialized Variable in vim/vim

Greetings, A Stack Buffer Overflow issue was discovered in Vim. The POC file is reduced to the absolute minimum to reproduce the problem. Please see sanitizer output and the "trimmed" POC file link below. System info OS version : Ubuntu 20.04.2 LTS + Clang 12 with ASan Vim Version : master2446ec9...

Heap-based Buffer Overflow in vim/vim

Greetings, A Heap-based Buffer Overflow issue was discovered in Vim. The POC file is reduced to the absolute minimum to reproduce the problem. Please see sanitizer output and the "trimmed" POC file link below. System info OS version : Ubuntu 20.04.2 LTS + Clang 12 with ASan Vim Version :...

Heap-based Buffer Overflow in vim/vim

Description Greetings, A Heap-based Buffer Overflow issue was discovered in Vim. The POC file is reduced to the absolute minimum to reproduce the problem. Please see sanitizer output and the "trimmed" POC file link below. System info OS version : Ubuntu 20.04.2 LTS + Clang 12 with ASan Vim Versio...

Heap-based Buffer Overflow in zyantific/zydis

Description Hello, we hope you're doing well during these challenging times. Whilst testing zydis built from commit 077b185 with Clang12 + ASan on Ubuntu 18.04, we discovered a crafted PE file that when fed to ZydisPE triggers a heap-buffer-overflow, READ of size 1. Proof of Concept POC Base64...

Heap-based Buffer Overflow in hoene/libmysofa

Description system : ubuntu 20.04 build command cd libmysofa mkdir build cd build CC=clang CXX=clang++ CFLAGS="-fsanitize=address -g" CXXFLAGS="-fsanitize=address -g" cmake ../ make all Proof of Concept https://drive.google.com/file/d/1JbQAECcj5-SDRZVUsRWiaBgJQZ0nMiK/view?usp=sharing repro...

Heap-based Buffer Overflow in hoene/libmysofa

Description system : ubuntu 20.04 build command cd libmysofa mkdir build cd build CC=clang CXX=clang++ CFLAGS="-fsanitize=address -g" CXXFLAGS="-fsanitize=address -g" cmake ../ make all repro ./mysofa2json -c ./libmyfofamysofacheck Proof of Concept...

Heap-based Buffer Overflow in hoene/libmysofa

Description system : ubuntu 20.04 build command cd libmysofa mkdir build cd build CC=clang CXX=clang++ CFLAGS="-fsanitize=address -g" CXXFLAGS="-fsanitize=address -g" cmake ../ make all run cmd ./mysofa2json -c ./heapoobreadmemcpy ./mysofa2json -c ./heapoobread Proof of Concept poc 1 :...

Heap-based Buffer Overflow in vim/vim

When fuzzing vim commit 56858e4ed works with latest build with clang 12 and ASan, I discovered a heap buffer overflow. Proof of Concept Here is minimized poc sh /%.v 5/ c Extract then run crafted file with this command vim -u NONE -X -Z -e -s -S vimpoc1 -c :qa! ASan stack trace: bash...

Heap-based Buffer Overflow in squell/id3

✍️ Description Hello! We compiled id3 from commit 857ac8 with Clang-13 + ASan, and we discovered a crafted file which triggers a heap-buffer-overflow, WRITE of size 1. This and the previous bug were discovered with the help of honggfuzz. 🕵️‍♂️ Proof of Concept echo...

Heap-based Buffer Overflow in squell/id3

✍️ Description Hello! We compiled id3 from commit 857ac8 with Clang-13 + ASan, and we discovered a crafted file which triggers a negative-size-param and a heap-buffer-overflow with a READ of size 40987248. But for the purposes of this report, we are going to look at the heap-buffer-overflow, as it...

in lavv17/lftp

✍️ Description Whilst testing lftp built from commit d67fc1 with Clang 13 +ASan on Ubuntu 20.04.2 LTS, we discovered a crafted file which triggers a null pointer dereference and segfault. 🕵️‍♂️ Proof of Concept echo "aiYgAQEBNA==" | base64 -d /tmp/file.fuzz && ./lftp -f /tmp/file.fuzz The above POC...

Heap-based Buffer Overflow in squell/id3

✍️ Description While testing id3 built from commit 0de713 with Clang 13 +ASan on Ubuntu 20.04.2, we discovered a POC which triggers a heap-buffer-overflow in tag::unbinarize. This particular flaw was discovered with the help of honggfuzz. 🕵️‍♂️ Proof of Concept echo...

Heap-based Buffer Overflow in squell/id3

✍️ Description Archive.org is a worthy cause to support. 👍 During testing of id3 compiled from commit a899ea with Clang 13+ASan on Ubuntu 20.04.2, we discovered a payload which triggers a heap-buffer-overflow in ID3put. This particular bug was found using the AFL fuzzer. 🕵️‍♂️ Proof of Concept echo...

in squell/id3

✍️ Description Archive.org is a worthy cause to support. 👍 During testing of id3 compiled from commit a899ea with Clang 13+ASan on Ubuntu 20.04.2, we discovered a payload which triggers a negative-size-param: size=-4 error when calling memcpy. This particular bug was discovered with the AFL fuzzer...

Heap-based Buffer Overflow in squell/id3

✍️ Description When running the id3 app built from commit 51e738 with Clang 13 +ASan on Ubuntu 20.04.2 against the test data file encoding.tag, a heap-buffer-overflow is triggered at https://github.com/squell/id3/blob/51e738e7575c54fd7fdd54c931a155b25c3f2d30/id3v2.cL104. static ulong ul4uchar n4...

in mcfriend99/bird

✍️ Description Heap-based 1-byte write violation. Certain programs can cause the parser/syntax-checker to write out of bounds. The below program writes a single byte out of bounds. 🕵️‍♂️ Proof of Concept Program: var a = 'outer' def test var a = 'inner' echo 'It works! $a' echo a echo test test def...

Stack-based Buffer Overflow in codeplea/tinyexpr

✍️ Description Whilst experimenting with repl built from commit 61af1d, with Clang 10 +ASan on Ubuntu 20.04.2 LTS, we discovered an expression containing 4 null characters after a newline which, due to insufficient bounds checking, triggers a stack-buffer-overflow. 🕵️‍♂️ Proof of Concept echo...