Rapid7 Vulnerability & Exploit Database

OpenSSL parasitic public key denial of service (CVE-2006-2940)

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OpenSSL parasitic public key denial of service (CVE-2006-2940)

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
09/28/2006
Created
07/25/2018
Added
08/17/2007
Modified
05/27/2016

Description

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.

Solution(s)

  • http-openssl-0_9_7-upgrade-0_9_7_l
  • http-openssl-0_9_8-upgrade-0_9_8_d

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