CVE-2017-3730 Information

Description

In OpenSSL 1.1.0 before 1.1.0d if a malicious server supplies bad parameters for a DHE or ECDHE key exchange then this can result in the client attempting to dereference a NULL pointer leading to a client crash. This could be exploited in a Denial of Service attack.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html http://www.securityfocus.com/bid/95812 http://www.securitytracker.com/id/1037717 https://github.com/openssl/openssl/commit/efbe126e3ebb9123ac9d058aa2bb044261342aaa https://security.gentoo.org/glsa/201702-07 https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03838en_us https://www.exploit-db.com/exploits/41192/ https://www.openssl.org/news/secadv/20170126.txt https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5