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CVE-2003-0543

MEDIUM
5.0NVD

Summary

generated automatically from NVD data

OpenSSL versions 0.9.6 and 0.9.7 contain an integer overflow in the handling of ASN.1 tag values. A remote attacker can trigger it by presenting an SSL client certificate with specially crafted tag values, which crashes the application and causes a denial of service. The flaw is rated MEDIUM, with a CVSS v2.0 base score of 5.0 and impact limited to availability.

NVD description

Integer overflow in OpenSSL 0.9.6 and 0.9.7 allows remote attackers to cause a denial of service (crash) via an SSL client certificate with certain ASN.1 tag values.

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EPSS · FIRST.org

27.4%probability of exploitation in the next 30 days

Higher than 98% of scored CVEs

EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-11-01, recomputed daily by FIRST.org.

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