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Test ID:1.3.6.1.4.1.25623.1.0.112916
Category:Denial of Service
Title:OpenSSL: Vulnerabilities in ASN.1 parsing (CVE-2003-0543, CVE-2003-0544) - Linux
Summary:OpenSSL is prone to multiple denial of service (DoS) vulnerabilities.
Description:Summary:
OpenSSL is prone to multiple denial of service (DoS) vulnerabilities.

Vulnerability Insight:
The following vulnerabilities exist:

- An integer overflow could allow remote attackers to cause a denial of service (crash) via an
SSL client certificate with certain ASN.1 tag values.

- Incorrect tracking of the number of characters in certain ASN.1 inputs could allow remote
attackers to cause a denial of service (crash) by sending an SSL client certificate that causes
OpenSSL to read past the end of a buffer when the long form is used.

Affected Software/OS:
OpenSSL version 0.9.6 through 0.9.6j and 0.9.7 through 0.9.7b.

Solution:
Update to version 0.9.6.k, 0.9.7c or later. See the references for
more details.

CVSS Score:
5.0

CVSS Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:P

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2003-0543
BugTraq ID: 8732
http://www.securityfocus.com/bid/8732
http://www.cert.org/advisories/CA-2003-26.html
CERT/CC vulnerability note: VU#255484
http://www.kb.cert.org/vuls/id/255484
Debian Security Information: DSA-393 (Google Search)
http://www.debian.org/security/2003/dsa-393
Debian Security Information: DSA-394 (Google Search)
http://www.debian.org/security/2003/dsa-394
En Garde Linux Advisory: ESA-20030930-027
http://www.linuxsecurity.com/advisories/engarde_advisory-3693.html
http://www.uniras.gov.uk/vuls/2003/006489/openssl.htm
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A4254
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5292
http://www.redhat.com/support/errata/RHSA-2003-291.html
http://www.redhat.com/support/errata/RHSA-2003-292.html
http://secunia.com/advisories/22249
http://sunsolve.sun.com/search/document.do?assetkey=1-66-201029-1
http://www.vupen.com/english/advisories/2006/3900
Common Vulnerability Exposure (CVE) ID: CVE-2003-0544
CERT/CC vulnerability note: VU#380864
http://www.kb.cert.org/vuls/id/380864
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A4574
XForce ISS Database: openssl-asn1-sslclient-dos(43041)
https://exchange.xforce.ibmcloud.com/vulnerabilities/43041
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