National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2002-0639 Detail

Description

Integer overflow in sshd in OpenSSH 2.9.9 through 3.3 allows remote attackers to execute arbitrary code during challenge response authentication (ChallengeResponseAuthentication) when OpenSSH is using SKEY or BSD_AUTH authentication.

Source:  MITRE
Description Last Modified:  07/03/2002

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 10.0 HIGH
Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete
Additional Information:
Provides administrator access
Allows unauthorized disclosure of information
Allows disruption of service

Vendor Statements (disclaimer)

Official Statement from Red Hat (05/15/2008)

Not vulnerable. This issue did not affect the versions of OpenSSH as shipped with Red Hat Enterprise Linux 3 or later. This issue did not affect the OpenSSL packages as shipped with Red Hat Enterprise Linux 2.1 as they were not compiled with S/Key or BSD_AUTH support. The upstream patch for this issue and CVE-2002-0640 was included in an errata so that users recompiling OpenSSL with support for those authentication methods would also be protected: https://rhn.redhat.com/errata/RHSA-2002-131.html

References to Advisories, Solutions, and Tools

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Hyperlink Resource
ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-030.0.txt
http://archives.neohapsis.com/archives/bugtraq/2002-06/0335.html
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000502
http://marc.info/?l=bugtraq&m=102514371522793&w=2
http://marc.info/?l=bugtraq&m=102514631524575&w=2
http://marc.info/?l=bugtraq&m=102521542826833&w=2
http://www.cert.org/advisories/CA-2002-18.html US Government Resource
http://www.debian.org/security/2002/dsa-134
http://www.iss.net/security_center/static/9169.php
http://www.kb.cert.org/vuls/id/369347 US Government Resource
http://www.linuxsecurity.com/advisories/other_advisory-2177.html
http://www.mandrakesoft.com/security/advisories?name=MDKSA-2002:040
http://www.securityfocus.com/bid/5093
http://www1.itrc.hp.com/service/cki/docDisplay.do?docId=HPSBUX0206-195

Technical Details

Vulnerability Type (View All)

Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2002-0639
NVD Published Date:
07/03/2002
NVD Last Modified:
10/17/2016