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CVE-2003-0147

5.0 · MEDIUM

OpenSSL does not use RSA blinding by default, which allows local and remote attackers to obtain the server's private key by determining factors using timing differences on (1) the number of extra r…

Published Mar 31, 2003openpkgEPSS 7.06%

Overview

CVE-2003-0147 is a medium-severity vulnerability affecting openpkg openpkg. It was published on March 31, 2003 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

OpenSSL does not use RSA blinding by default, which allows local and remote attackers to obtain the server's private key by determining factors using timing differences on (1) the number of extra reductions during Montgomery reduction, and (2) the use of different integer multiplication algorithms ("Karatsuba" and normal).

Remediation

Check the references section for vendor advisories and patches from openpkg. Update openpkg to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refftp://ftp.sco.com/pub/security/OpenLinux/CSSA-2003-014.0.txtRefftp://patches.sgi.com/support/free/security/advisories/20030501-01-IRefarchives.neohapsis.com/archives/vulnwatch/2003-q1/0130.htmlRefcrypto.stanford.edu/~dabo/papers/ssl-timing.pdfRefdistro.conectiva.com.br/atualizacoes/?id=a&anuncio=000625Refmarc.info/?l=bugtraq&m=104766550528628&w=2Refmarc.info/?l=bugtraq&m=104792570615648&w=2Refmarc.info/?l=bugtraq&m=104819602408063&w=2Refmarc.info/?l=bugtraq&m=104829040921835&w=2Refmarc.info/?l=bugtraq&m=104861762028637&w=2

How CyberStrike helps

Frequently asked questions

What is CVE-2003-0147?

CVE-2003-0147 is a medium-severity vulnerability affecting openpkg openpkg. It was published on March 31, 2003 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2003-0147?

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2003-0147?

Check the references section for vendor advisories and patches from openpkg. Update openpkg to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2003-0147?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2003-0147 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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