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Files from Mateusz Kocielski

First Active2010-05-11
Last Active2016-02-02
A Tale of openssl_seal(), PHP, and Apache2handle
Posted Feb 2, 2016
Authored by Filip Palian, Marek Kroemeke, Mateusz Kocielski

openssl_seal() is prone to use uninitialized memory that can be turned into a code execution. This document describes technical details of the journey to hijack apache2 requests. It is a very well written and thoroughly documented piece of research.

tags | exploit, paper, code execution
MD5 | 9c14b46a2de734fa08faee15ff5d7157
FreeBSD Security Advisory - IGMP Integer Overflow
Posted Apr 8, 2015
Authored by Marek Kroemeke, Mateusz Kocielski | Site security.freebsd.org

FreeBSD Security Advisory - An integer overflow in computing the size of IGMPv3 data buffer can result in a buffer which is too small for the requested operation. An attacker who can send specifically crafted IGMP packets could cause a denial of service situation by causing the kernel to crash. Revision 2 of this advisory.

tags | advisory, denial of service, overflow, kernel
systems | freebsd
advisories | CVE-2015-1414
MD5 | e3aa8e64324f5ee800e00f8517bd7c03
FreeBSD Security Advisory - IGMP Integer Overflow
Posted Feb 26, 2015
Authored by Marek Kroemeke, Mateusz Kocielski | Site security.freebsd.org

FreeBSD Security Advisory - An integer overflow in computing the size of IGMPv3 data buffer can result in a buffer which is too small for the requested operation. An attacker who can send specifically crafted IGMP packets could cause a denial of service situation by causing the kernel to crash.

tags | advisory, denial of service, overflow, kernel
systems | freebsd
advisories | CVE-2015-1414
MD5 | 89b443fe13922317739f20717496c68e
PHP Socket connect() Stack Buffer Overflow
Posted May 25, 2011
Authored by Filip Palian, Marek Kroemeke, Mateusz Kocielski

PHP socket connect() stack buffer overflow proof of concept code.

tags | exploit, overflow, php, proof of concept
advisories | CVE-2011-1938
MD5 | fddfcef57c1ae3d3317eb501f29dab53
MOPS-2010-022 - PHP Stream Context Use After Free on Request Shutdown
Posted May 25, 2010
Authored by Mateusz Kocielski | Site php-security.org

Month Of PHP Security - PHP uses the stream context during stream destruction, although it was already freed in the request shutdown before. PHP versions 5.2 through 5.2.13 and 5.3 through 5.3.2 are affected.

tags | exploit, php
MD5 | f8dd2cb8eb88afece683c7f92716aed1
MOPS-2010-021 - PHP fnmatch() Stack Exhaustion
Posted May 25, 2010
Authored by Mateusz Kocielski | Site php-security.org

Month Of PHP Security - PHP's fnmatch() function can be used to crash PHP through a stack exhaustion attack. PHP versions 5.2 through 5.2.13 and 5.3 through 5.3.2 are affected.

tags | exploit, php
MD5 | 14fdb7ec9fab761a0dd650031d3a37a6
MOPS-2010-013 - PHP sqlite_array_query() Uninitialized Memory Usage
Posted May 11, 2010
Authored by Mateusz Kocielski | Site php-security.org

Month Of PHP Security - PHP sqlite_array_query() Uninitialized Memory Usage Vulnerability. PHP versions 5.2.13 and below and 5.3.2 and below are affected.

tags | exploit, php
MD5 | 8f1d95e8d75d04df0c3b6e7c8ad3a7ca
MOPS-2010-012 - PHP sqlite_single_query() Uninitialized Memory Usage
Posted May 11, 2010
Authored by Mateusz Kocielski | Site php-security.org

Month Of PHP Security - PHP sqlite_single_query() Uninitialized Memory Usage Vulnerability. PHP versions 5.2.13 and below and 5.3.2 and below are affected.

tags | exploit, php
MD5 | aa12ff328dec0510ef39eac183277639
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