National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-3730 Detail

Current 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.

Source:  MITRE      Last Modified:  05/04/2017      View Analysis Description

Quick Info

CVE Dictionary Entry:
CVE-2017-3730
Original release date:
05/04/2017
Last revised:
02/13/2018
Source:
US-CERT/NIST

Impact

CVSS Severity (version 3.0):
CVSS v3 Base Score:
7.5 High
Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (legend)
Impact Score:
3.6
Exploitability Score:
3.9
CVSS Version 3 Metrics:
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 Severity (version 2.0):
CVSS v2 Base Score:
5.0 MEDIUM
Vector:
(AV:N/AC:L/Au:N/C:N/I:N/A:P) (legend)
Impact Subscore:
2.9
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
Low
Authentication:
Not required to exploit
Impact Type:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html External Source CONFIRM http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html External Source CONFIRM http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
http://www.securityfocus.com/bid/95812 Broken Link External Source BID 95812
http://www.securitytracker.com/id/1037717 External Source SECTRACK 1037717
https://github.com/openssl/openssl/commit/efbe126e3ebb9123ac9d058aa2bb044261342aaa External Source MISC https://github.com/openssl/openssl/commit/efbe126e3ebb9123ac9d058aa2bb044261342aaa
https://security.gentoo.org/glsa/201702-07 External Source GENTOO GLSA-201702-07
https://www.exploit-db.com/exploits/41192/ External Source EXPLOIT-DB 41192
https://www.openssl.org/news/secadv/20170126.txt Patch; Vendor Advisory External Source CONFIRM https://www.openssl.org/news/secadv/20170126.txt

Technical Details

Vulnerability Type (View All)

  • NULL Pointer Dereference (CWE-476)

Change History 8 change records found - show changes