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Files from Alexander Peslyak

First Active2015-01-27
Last Active2020-05-21
Qualys Security Advisory - Qmail Remote Code Execution
Posted May 21, 2020
Authored by Alexander Peslyak, Qualys Security Advisory, Stephane Bellenger, Jean-Paul Michel, Julien Barthelemy, Andrew Richards

In 2005, three vulnerabilities were discovered in qmail but were never fixed because they were believed to be unexploitable in a default installation. Qualys recently re-discovered these vulnerabilities and were able to exploit one of them remotely in a default installation.

tags | exploit, vulnerability
advisories | CVE-2005-1513, CVE-2005-1514, CVE-2005-1515, CVE-2020-3811, CVE-2020-3812
MD5 | f669ab533f30c6f109eb83ceceabfd6c
Qualys Security Advisory - glibc gethostbyname Buffer Overflow
Posted Jan 27, 2015
Authored by Alexander Peslyak, Qualys Security Advisory

Qualys Security Advisory - During a code audit performed internally at Qualys, they discovered a buffer overflow in the __nss_hostname_digits_dots() function of the GNU C Library (glibc). This bug is reachable both locally and remotely via the gethostbyname*() functions, so they decided to analyze it -- and its impact -- thoroughly, and named this vulnerability "GHOST".

tags | exploit, overflow
advisories | CVE-2015-0235
MD5 | 224667245d80596a539da4cf2a8490ef
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