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Test ID:1.3.6.1.4.1.25623.1.0.51398
Category:Conectiva Local Security Checks
Title:Conectiva Security Advisory CLA-2003:570
Summary:Conectiva Security Advisory CLA-2003:570
Description:
The remote host is missing updates announced in
advisory CLA-2003:570.

OpenSSL[1] implements the Secure Sockets Layer (SSL v2/v3) and
Transport Layer Security (TLS v1) protocols as well as full-strength
general purpose cryptography functions. It's used (as a library) by
several projects, like Apache, OpenSSH, Bind, OpenLDAP and many
others clients and servers programs.

In an upcoming paper, Brice Canvel (EPFL), Alain Hiltgen (UBS), Serge
Vaudenay (EPFL), and Martin Vuagnoux (EPFL, Ilion) describe and
demonstrate a timing-based attack on CBC ciphersuites in SSL and
TLS.

Vulnerable[2][3] openssl versions do not perform a MAC computation if
an incorrect block cipher padding is used. An active attacker who can
insert data into an existing encrypted connection is then able to
measure time differences between the error messages the server sends.
This information can make it easier to launch cryptographic attacks
that rely on distinguishing between padding and MAC verification
errors, possibly leading to extraction of the original plaintext.

The openssl packages provided with this update are patched against
this vulnerability.


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-2003:570
http://distro.conectiva.com.br/atualizacoes/index.php?id=a&anuncio=002003

Risk factor : Medium
Cross-Ref: BugTraq ID: 6884
Common Vulnerability Exposure (CVE) ID: CVE-2003-0078
Bugtraq: 20030219 OpenSSL 0.9.7a and 0.9.6i released (Google Search)
http://marc.theaimsgroup.com/?l=bugtraq&m=104567627211904&w=2
Conectiva Linux advisory: CLSA-2003:570
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000570
Debian Security Information: DSA-253 (Google Search)
http://www.debian.org/security/2003/dsa-253
En Garde Linux Advisory: ESA-20030220-005
http://www.linuxsecurity.com/advisories/engarde_advisory-2874.html
FreeBSD Security Advisory: FreeBSD-SA-03:02
http://marc.theaimsgroup.com/?l=bugtraq&m=104577183206905&w=2
http://www.redhat.com/support/errata/RHSA-2003-062.html
http://www.redhat.com/support/errata/RHSA-2003-063.html
http://www.redhat.com/support/errata/RHSA-2003-082.html
http://www.redhat.com/support/errata/RHSA-2003-104.html
http://www.redhat.com/support/errata/RHSA-2003-205.html
SGI Security Advisory: 20030501-01-I
ftp://patches.sgi.com/support/free/security/advisories/20030501-01-I
http://www.trustix.org/errata/2003/0005
http://www.mandrakesoft.com/security/advisories?name=MDKSA-2003:020
NETBSD Security Advisory: NetBSD-SA2003-001
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2003-001.txt.asc
SuSE Security Announcement: SuSE-SA:2003:011 (Google Search)
Bugtraq: 20030219 [OpenPKG-SA-2003.013] OpenPKG Security Advisory (openssl) (Google Search)
http://marc.theaimsgroup.com/?l=bugtraq&m=104568426824439&w=2
Computer Incident Advisory Center Bulletin: N-051
http://www.ciac.org/ciac/bulletins/n-051.shtml
http://www.securityfocus.com/bid/6884
http://www.iss.net/security_center/static/11369.php
http://www.osvdb.org/3945
CopyrightCopyright (c) 2005 E-Soft Inc. http://www.securityspace.com

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