CVE-2017-3730

high

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.

References

https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03838en_us

https://security.gentoo.org/glsa/201702-07

https://github.com/openssl/openssl/commit/efbe126e3ebb9123ac9d058aa2bb044261342aaa

http://www.securitytracker.com/id/1037717

https://www.exploit-db.com/exploits/41192/

https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html

https://www.openssl.org/news/secadv/20170126.txt

http://www.securityfocus.com/bid/95812

http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html

http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html

Details

Source: Mitre, NVD

Published: 2017-05-04

Updated: 2025-04-20

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

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

Severity: High

EPSS

EPSS: 0.55093