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Test ID:1.3.6.1.4.1.25623.1.0.51395
Category:Conectiva Local Security Checks
Title:Conectiva Security Advisory CLA-2003:567
Summary:Conectiva Security Advisory CLA-2003:567
Description:
The remote host is missing updates announced in
advisory CLA-2003:567.

The mcrypt package contains libmcrypt, a decryption and encryption
library with support for various algorithms.

Ilia Alshanetsky found[1] several buffer overflows vulnerabilities[2]
in libmcrypt. These vulnerabilities basically consist of improper or
lack of validation for some input (which in some scenarios can came
from a local user or from a network connection).

Another vulnerability[3] exists in the way libmcrypt loads algorithms
via libtool. When different algorithms are loaded dynamically a small
part of memory is leaked. In a persistant environment, an attacker
can exhaust all available memory by launching repeated requests to an
application that utilizes the mcrypt library.

These vulnerabilites are fixed in libmcrypt version 2.5.5, and the
changes were backported to mcrypt-2.4.9 in Conectiva Linux 7.0 and
mcrypt-2.4.18 in Conectiva Linux 8. Conectiva Linux 6.0 does not ship
the mcrypt package.


Solution:
The apt tool can be used to perform RPM package upgrades
by running 'apt-get update' followed by 'apt-get upgrade'

http://marc.theaimsgroup.com/?l=bugtraq&m=104162752401212&w=2
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2003-0031
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2003-0032
http://www.securityspace.com/smysecure/catid.html?in=CLA-2003:567
http://distro.conectiva.com.br/atualizacoes/index.php?id=a&anuncio=002003

Risk factor : High
Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2003-0031
Bugtraq: 20030103 Multiple libmcrypt vulnerabilities (Google Search)
http://marc.theaimsgroup.com/?l=bugtraq&m=104162752401212&w=2
Bugtraq: 20030105 GLSA: libmcrypt (Google Search)
http://marc.theaimsgroup.com/?l=bugtraq&m=104188513728573&w=2
Debian Security Information: DSA-228 (Google Search)
http://www.debian.org/security/2003/dsa-228
Conectiva Linux advisory: CLA-2003:567
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000567
SuSE Security Announcement: SuSE-SA:2003:0010 (Google Search)
BugTraq ID: 6510
http://www.securityfocus.com/bid/6510
http://www.securitytracker.com/id?1006181
Common Vulnerability Exposure (CVE) ID: CVE-2003-0032
http://www.iss.net/security_center/static/10988.php
BugTraq ID: 6512
http://www.securityfocus.com/bid/6512
CopyrightCopyright (c) 2005 E-Soft Inc. http://www.securityspace.com

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