ID de Prueba:	1.3.6.1.4.1.25623.1.0.51506
Categoría:	Conectiva Local Security Checks
Título:	Conectiva Security Advisory CLA-2002:469
Resumen:	NOSUMMARY
Descripción:	Description: The remote host is missing updates announced in advisory CLA-2002:469. zlib[1] is a compression library used by hundreds of different programs. zlib version 1.1.3 and lower of this library have a vulnerability[5] which can be used by an attacker (local or remote, it depends on the service being targeted) to cause a Denial of Service condition in most cases, or, in the worst case, possibly execute arbitrary code. With a carefully crafted compressed stream of data it is possible to make the library attempt to free the same pointer twice, which will cause the affected program to exit abnormally in most cases. However, it has already been demonstrated[7] that a double free() can be used in certain conditions to execute arbitrary code. Originally reported by Steven Sawkins to the authors for the 1.1.3 version of the library, the problem was initially not deemed a security vulnerability. More recently this issue was brought up again[4], this time by Matthias Clasen, and its security impact was realized after an analysis done by Owen Taylor. This update also addresses another problem[8] found by Ethan Benson in the rsync program. He found out that rsync fails to drop root's groups when switching to another uid/gid. Solution: The apt tool can be used to perform RPM package upgrades by running 'apt-get update' followed by 'apt-get upgrade' http://www.securityspace.com/smysecure/catid.html?in=CLA-2002:469 http://distro.conectiva.com.br/atualizacoes/index.php?id=a&anuncio=002002 Risk factor : High
Copyright	Copyright (c) 2005 E-Soft Inc. http://www.securityspace.com

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