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Files from Hans Jerry Illikainen

Email addresshji at dyntopia.com
First Active2015-12-17
Last Active2017-12-17
VLC 2.2.8 MP4 Demux Type Conversion
Posted Dec 17, 2017
Authored by Hans Jerry Illikainen

VLC versions 2.2.8 and below suffer from a type conversion vulnerability in the MP4 demux module.

tags | advisory
advisories | CVE-2017-17670
MD5 | cf057fee125060c0d8ad64d644290c54
Mozilla Firefox nsHtml5TreeBuilder Use-After-Free
Posted Aug 20, 2017
Authored by Hans Jerry Illikainen, ca0nguyen

Mozilla Firefox versions prior to 45 nsHtml5TreeBuilder use-after-free exploit with EMET 5.52 bypass.

tags | exploit
advisories | CVE-2016-1960
MD5 | 8008f48b0fd538cf58c28aaca53512bf
PHP LibGD Heap Buffer Overflow
Posted Jan 17, 2017
Authored by Hans Jerry Illikainen

Proof of concept exploit for CVE-2016-3074 targeting Ubuntu 15.10 x86-64 with php5-gd and php5-fpm running behind nginx.

tags | exploit, overflow, x86, proof of concept
systems | linux, ubuntu
advisories | CVE-2016-3074
MD5 | 62ec20b51bb7cee9f2062e9144826d2e
PHP 7.0.8 / 5.6.23 / 5.5.37 bzread() OOB Write
Posted Jul 21, 2016
Authored by Hans Jerry Illikainen

PHP versions 7.0.8, 5.6.23, and 5.5.37 suffers from an out-of-bounds write vulnerability in bzread().

tags | exploit, php
advisories | CVE-2016-5399
MD5 | 6b6fb4f1de53517be6387665e5599f1a
PHP 7.x Heap Overflow
Posted Apr 28, 2016
Authored by Hans Jerry Illikainen

An integer wrap may occur in PHP 7.x before version 7.0.6 when reading zip files with the getFromIndex() and getFromName() methods of ZipArchive, resulting in a heap overflow. Full exploit included.

tags | exploit, overflow, php
advisories | CVE-2016-3078
MD5 | a681c55094ed13770f1f961d5c5dde1d
libgd 2.1.1 Signedness
Posted Apr 21, 2016
Authored by Hans Jerry Illikainen

A signedness vulnerability exists in libgd version 2.1.1 which may result in a heap overflow when processing compressed gd2 data.

tags | exploit, overflow
advisories | CVE-2016-3074
MD5 | ac4ec412c1ea555ee8fa7938bfa468b2
Optipng Invalid Write
Posted Apr 5, 2016
Authored by Hans Jerry Illikainen

An invalid write may occur in optipng before version 0.7.6 while processing bitmap images due to `crt_row' being (inc|dec)remented without any boundary checking when encountering delta escapes.

tags | advisory
advisories | CVE-2016-2191
MD5 | 652a269ac45b0937a4f3a2dcadc3d8ab
libtiff 4.0.6 Invalid Write
Posted Dec 27, 2015
Authored by Hans Jerry Illikainen

_TIFFVGetField() in libtiff version 4.0.6 may write field data for certain extension tags to invalid or possibly arbitrary memory locations.

tags | advisory, arbitrary
advisories | CVE-2015-7554
MD5 | 9df1198f8ca6ed0f042d0af9ca110922
giflib 5.1.1 Heap Overflow
Posted Dec 22, 2015
Authored by Hans Jerry Illikainen

A heap overflow may occur in the giffix utility included in giflib-5.1.1 when processing records of the type IMAGE_DESC_RECORD_TYPE due to the allocated size of LineBuffer equaling the value of the logical screen width, GifFileIn->SWidth, while subsequently having GifFileIn->Image.Width bytes of data written to it.

tags | advisory, overflow
advisories | CVE-2015-7555
MD5 | d56648519cdde09ae45f0e4377a504dd
Libnsbmp 0.1.2 Heap Overflow / Out-Of-Bounds Read
Posted Dec 17, 2015
Authored by Hans Jerry Illikainen

Libnsbmp version 0.1.2 suffers from heap overflow and out-of-bounds read vulnerabilities.

tags | advisory, overflow, vulnerability
advisories | CVE-2015-7507, CVE-2015-7508
MD5 | d6850e283e3ea6faf482991791566c90
Libnsgif 0.1.2 Stack Overflow / Out-Of-Bounds Read
Posted Dec 17, 2015
Authored by Hans Jerry Illikainen

Libnsgif version 0.1.2 suffers from stack overflow and out-of-bounds read vulnerabilities.

tags | advisory, overflow, vulnerability
advisories | CVE-2015-7505, CVE-2015-7506
MD5 | 1009b65ab8d34ba81c0ece2efa9ec291
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