NVD Vulnerability Detail
Search Exploit, PoC
CVE-2006-2940
Summary

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.

Summary

OpenSSL 0.9.7 en versiones anteriores a 0.9.7l, 0.9.8 en versiones anteriores a 0.9.8d y versiones anteriores permite a atacantes provocar una denegación de servicio (consumo de CPU) a través de claves públicas parasitarias con valores grandes de (1) "exponente público" o (2) "módulo público" en certificados X.509 que requiere tiempo extra de procesamiento cuando utiliza una verificación de firma RSA.

Publication Date Sept. 29, 2006, 3:07 a.m.
Registration Date Jan. 29, 2021, 3:39 p.m.
Last Update April 23, 2026, 9:35 a.m.
CVSS2.0 : HIGH
Score 7.8
Vector AV:N/AC:L/Au:N/C:N/I:N/A:C
攻撃元区分(AV) ネットワーク
攻撃条件の複雑さ(AC) 低
攻撃前の認証要否(Au) 不要
機密性への影響(C) なし
完全性への影響(I) なし
可用性への影響(A) 高
Get all privileges. いいえ
Get user privileges いいえ
Get other privileges いいえ
User operation required いいえ
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:openssl:openssl:0.9.1c:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.2b:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.3:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.3a:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.4:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.5:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.5:beta1:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.5:beta2:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.5a:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.5a:beta1:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.5a:beta2:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.6:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.6:beta1:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.6:beta2:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.6:beta3:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.6a:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.6a:beta1:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.6a:beta2:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.6a:beta3:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.6b:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.6c:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.6d:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.6e:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.6f:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.6g:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.6h:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.6i:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.6j:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.6k:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.6l:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.6m:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.7:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.7a:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.7b:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.7c:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.7d:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.7e:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.7f:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.7g:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.7h:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.7i:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.7j:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.7k:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.8:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.8a:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.8b:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.8c:*:*:*:*:*:*:*
Related information, measures and tools
Common Vulnerabilities List