Vulnerability Details : CVE-2006-2940

OpenSSL 0.9.7 before 0.9.7l, 0.9.8 before 0.9.8d, and earlier versions allows attackers to cause a denial of service (CPU consumption) via parasitic public keys with large (1) "public exponent" or (2) "public modulus" values in X.509 certificates that require extra time to process when using RSA signature verification.
Published 2006-09-28 18:07:00
Updated 2018-10-18 16:44:22
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: Denial of service

Products affected by CVE-2006-2940

Exploit prediction scoring system (EPSS) score for CVE-2006-2940

EPSS FAQ
27.06%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 97 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2006-2940

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.8
 HIGH AV:N/AC:L/Au:N/C:N/I:N/A:C
10.0
6.9
 NIST

CWE ids for CVE-2006-2940

  • Assigned by: nvd@nist.gov (Primary)

Vendor statements for CVE-2006-2940

  • Red Hat 2007-03-14
    Red Hat Enterprise Linux 5 is not vulnerable to this issue as it contains a backported patch.

References for CVE-2006-2940

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