Bad (EC)DHE parameters cause a client crash

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Summary

CVECVE-2017-3730
StatePUBLISHED
Assigneropenssl
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-05-04 19:29:00 UTC
Updated2025-04-20 01:37:25 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.0 7.5 HIGH from [email protected]

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

Problem Types: CWE-476 | NULL pointer deference

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary7.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
2.0[email protected]Primary5AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Openssl Openssl 1.1.0 All All All
Application Openssl Openssl 1.1.0a All All All
Application Openssl Openssl 1.1.0b All All All
Application Openssl Openssl 1.1.0c All All All
Application Oracle Agile Engineering Data Management 6.1.3 All All All
Application Oracle Agile Engineering Data Management 6.2.0 All All All
Application Oracle Communications Application Session Controller 3.7.1 All All All
Application Oracle Communications Application Session Controller 3.8.0 All All All
Application Oracle Communications Eagle Lnp Application Processor 10.0 All All All
Application Oracle Communications Eagle Lnp Application Processor 10.1 All All All
Application Oracle Communications Eagle Lnp Application Processor 10.2 All All All
Application Oracle Communications Operations Monitor 3.4 All All All
Application Oracle Communications Operations Monitor 4.0 All All All
Application Oracle Jd Edwards Enterpriseone Tools 9.2 All All All
Application Oracle Jd Edwards World Security a9.1 All All All
Application Oracle Jd Edwards World Security a9.2 All All All
Application Oracle Jd Edwards World Security a9.3 All All All
Application Oracle Jd Edwards World Security a9.4 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA OpenSSL OpenSSL affected openssl-1.1.0 Not specified
CNA OpenSSL OpenSSL affected openssl-1.1.0a Not specified
CNA OpenSSL OpenSSL affected openssl-1.1.0b Not specified
CNA OpenSSL OpenSSL affected openssl-1.1.0c Not specified

References

ReferenceSourceLinkTags
Document Display | HPE Support Center af854a3a-2127-422b-91ae-364da2661108 support.hpe.com Third Party Advisory
OpenSSL 1.1.0 - Remote Client Denial of Service - Multiple dos Exploit af854a3a-2127-422b-91ae-364da2661108 www.exploit-db.com Exploit, Third Party Advisory, VDB Entry
OpenSSL Multiple Bugs Let Remote Users Deny Service and Obtain Potentially Sensitive Information - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com Third Party Advisory, VDB Entry
Oracle Critical Patch Update - October 2017 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch
Oracle Critical Patch Update - January 2018 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch
OpenSSL CVE-2017-3730 NULL Pointer Dereference Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Broken Link, Third Party Advisory, VDB Entry
Fix missing NULL checks in CKE processing · openssl/openssl@efbe126 · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Patch, Third Party Advisory
Oracle Critical Patch Update Advisory - April 2019 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch
www.openssl.org/news/secadv/20170126.txt af854a3a-2127-422b-91ae-364da2661108 www.openssl.org Patch, Vendor Advisory
OpenSSL: Multiple vulnerabilities (GLSA 201702-07) — Gentoo Security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Guido Vranken (en)

Legacy QID Mappings

  • 43835 HPE Switches And Routers Open Secure Sockets Layer (OpenSSL) Multiple Remote Vulnerabilities (HPESBHF03838)
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