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CVE-2017-3730

Bad (EC)DHE parameters cause a client crash

Published: May 4, 2017Updated: May 13, 2026 Sources: CVE List NVD BDUCWE-476
7.5HIGH
NVD MITRE
EPSS Score
55.3%
Top 1.1%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-476

Affected Products

oracle
commercial·USaka oracle corp.
agile engineering data managementOn-premWeb App
Enterprise Software / erp
communications application session controllerOn-premWeb App
Communications
communications eagle lnp application processorOn-premWeb App
Communications
communications operations monitorOn-premWeb App
Databases / db-tooling
jd edwards enterpriseone toolsOn-premDatabase
Databases / relational
jd edwards world securityOn-prem
Enterprise Software
Сообщество свободного программного обеспечения
oss-projectaka fsf
Debian GNU/LinuxOn-premOS
Operating Systems / linux-distro
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
Astra Linux Common EditionOn-premOS
Operating Systems / linux-distro
Novell Inc.
commercial·US
Suse Linux Enterprise DesktopOn-premOS
Operating Systems / linux-distro
OpenSSL Software Foundation
oss-project·USaka openssl.org, openssl foundation
OpenSSLLibraryLibrary
OSS Libraries / generic-library
OpenSSL
oss-project·USaka open ssl
OpenSSLLibraryLibrary
OSS Libraries / generic-library
and 1 more affected products View all →

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Impact
Initial Access
View detailed technique mapping

References

https://www.suse.com/security/cve/CVE-2017-3730/
suse.com
https://www.openssl.org/news/secadv/20170126.txt
openssl.org
https://nvd.nist.gov/vuln/detail/CVE-2017-3730
nvd.nist.gov
and 11 more references View all →

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