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Vulnerability record · CVE-2003-0544 · published 17 November 2003

CVE-2003-0544: Openssl vulnerability

OOpenssl · Openssl

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.

5.0 CVSS 2.0 Medium EPSS 6.9% · top 6.1%
5.0CVSS 2.0 base score
6.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
32References
16 Jun 2026Last modified by NVD

Description

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=104893
http://secunia.com/advisories/22249
http://sunsolve.sun.com/search/document.do?assetkey=1-66-201029-1
http://www-1.ibm.com/support/docview.wss?uid=swg21247112
http://www.cert.org/advisories/CA-2003-26.html US Government Resource
http://www.debian.org/security/2003/dsa-393
http://www.debian.org/security/2003/dsa-394
http://www.kb.cert.org/vuls/id/380864 US Government Resource
http://www.linuxsecurity.com/advisories/engarde_advisory-3693.html
http://www.redhat.com/support/errata/RHSA-2003-291.html PatchVendor Advisory
http://www.redhat.com/support/errata/RHSA-2003-292.html PatchVendor Advisory
http://www.securityfocus.com/bid/8732
http://www.uniras.gov.uk/vuls/2003/006489/openssl.htm
http://www.vupen.com/english/advisories/2006/3900
https://exchange.xforce.ibmcloud.com/vulnerabilities/43041
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A4574
http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=104893
http://secunia.com/advisories/22249
http://sunsolve.sun.com/search/document.do?assetkey=1-66-201029-1
http://www-1.ibm.com/support/docview.wss?uid=swg21247112
http://www.cert.org/advisories/CA-2003-26.html US Government Resource
http://www.debian.org/security/2003/dsa-393
http://www.debian.org/security/2003/dsa-394
http://www.kb.cert.org/vuls/id/380864 US Government Resource
http://www.linuxsecurity.com/advisories/engarde_advisory-3693.html
http://www.redhat.com/support/errata/RHSA-2003-291.html PatchVendor Advisory
http://www.redhat.com/support/errata/RHSA-2003-292.html PatchVendor Advisory
http://www.securityfocus.com/bid/8732
http://www.uniras.gov.uk/vuls/2003/006489/openssl.htm
http://www.vupen.com/english/advisories/2006/3900
https://exchange.xforce.ibmcloud.com/vulnerabilities/43041
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A4574

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Source: NIST National Vulnerability Database (record CVE-2003-0544), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.