CVE-2017-3730
Bad (EC)DHE parameters cause a client crash
HIGH 7.5EPSS 55.3%
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.
- Affected
- OpenSSL
- CVSS v3.0 NVD
- 7.5 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS v2.0 NVD
- 5.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P - EPSS
- 55.29% chance of exploitation in the next 30 days, 99th percentile
- Published
- 2017-05-04
- Updated
- 2024-09-16
Proof-of-concept exploits (1)
- HavocParasite/CVE-2017-37300★ · 2017-01-26
ExploitDB entries (1)
Security advisories
- https://www.openssl.org/news/secadv/20170126.txt
- http://www.securityfocus.com/bid/95812
- http://www.securitytracker.com/id/1037717
- 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-hpesbhf03838…
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html