National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-3731 Detail

Current Description

If an SSL/TLS server or client is running on a 32-bit host, and a specific cipher is being used, then a truncated packet can cause that server or client to perform an out-of-bounds read, usually resulting in a crash. For OpenSSL 1.1.0, the crash can be triggered when using CHACHA20/POLY1305; users should upgrade to 1.1.0d. For Openssl 1.0.2, the crash can be triggered when using RC4-MD5; users who have not disabled that algorithm should update to 1.0.2k.

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

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (V3 legend)
Impact Score: 3.6
Exploitability Score: 3.9


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 v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://rhn.redhat.com/errata/RHSA-2017-0286.html
http://securityadvisories.paloaltonetworks.com/Home/Detail/82
http://www.debian.org/security/2017/dsa-3773
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
http://www.securityfocus.com/bid/95813 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1037717
https://access.redhat.com/errata/RHSA-2018:2185
https://access.redhat.com/errata/RHSA-2018:2186
https://access.redhat.com/errata/RHSA-2018:2187
https://github.com/openssl/openssl/commit/00d965474b22b54e4275232bc71ee0c699c5cd21
https://security.FreeBSD.org/advisories/FreeBSD-SA-17:02.openssl.asc
https://security.gentoo.org/glsa/201702-07
https://security.netapp.com/advisory/ntap-20171019-0002/
https://source.android.com/security/bulletin/pixel/2017-11-01
https://www.openssl.org/news/secadv/20170126.txt Vendor Advisory
https://www.tenable.com/security/tns-2017-04

Technical Details

Vulnerability Type (View All)

Change History

17 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-3731
NVD Published Date:
05/04/2017
NVD Last Modified:
07/13/2018