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CVE-2017-3730

Date: May 4, 2017

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.

Language: C

Severity Score

Related Resources (13)

https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03838en_us
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
https://github.com/openssl/openssl/commit/efbe126e3ebb9123ac9d058aa2bb044261342aaa
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
http://www.securityfocus.com/bid/95812
https://www.openssl.org/news/secadv/20170126.txt
https://security.gentoo.org/glsa/201702-07
https://www.exploit-db.com/exploits/41192/
https://nvd.nist.gov/vuln/detail/CVE-2017-3730
http://www.securitytracker.com/id/1037717
https://security-tracker.debian.org/tracker/CVE-2017-3730
https://www.mend.io/vulnerability-database/CVE-2017-3730

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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