National Cyber-Alert System
Vulnerability Summary for CVE-2003-0544
Original release date:11/17/2003
Last revised:09/10/2008
Source:
US-CERT/NIST
Overview
OpenSSL 0.9.6 and 0.9.7 does not properly track the number of characters in certain ASN.1 inputs, which allows remote attackers to cause a denial of service (crash) via an SSL client certificate that causes OpenSSL to read past the end of a buffer when the long form is used.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
2.9
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type:Allows disruption of serviceUnknown
Official Statement from Red Hat (07/07/2008)
For Red Hat Enterprise Linux 2.1 OpenSSL packages (openssl, openssl096, openssl095a) issue was addressed via RHSA-2003:293.
The OpenSSL packages in Red Hat Enterprise Linux 3 and 4 (openssl, openssl096b) contain a backported patch since their initial release.
The OpenSSL packages in Red Hat Enterprise Linux 5 are based on fixed upstream release (openssl), or contain backported patch since their initial release (openssl097a).
References to Advisories, Solutions, and Tools
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US-CERT Vulnerability Note: VU#380864
Name: VU#380864
CERT/CC Advisory: CA-2003-26
Name: CA-2003-26
External Source: REDHAT
Name: RHSA-2003:292
Type: Advisory; Patch Information
External Source: REDHAT
Name: RHSA-2003:291
Type: Advisory; Patch Information
External Source: MISC
Name: http://www.uniras.gov.uk/vuls/2003/006489/openssl.htm
External Source: ENGARDE
Name: ESA-20030930-027
External Source: DEBIAN
Name: DSA-394
External Source: DEBIAN
Name: DSA-393
External Source: CONFIRM
Name: http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=104893
External Source: XF
Name: openssl-asn1-sslclient-dos(43041)
External Source: BID
Name: 8732
External Source: VUPEN
Name: ADV-2006-3900
External Source: CONFIRM
Name: http://www-1.ibm.com/support/docview.wss?uid=swg21247112
External Source: SECUNIA
Name: 22249
US Government Resource: oval:org.mitre.oval:def:4574
Name: oval:org.mitre.oval:def:4574
Type: Tool Signature
