CVE-2017-3733

7.5 HIGH
Published: May 04, 2017 Modified: May 13, 2026
View on NVD

Description

During a renegotiation handshake if the Encrypt-Then-Mac extension is negotiated where it was not in the original handshake (or vice-versa) then this can cause OpenSSL 1.1.0 before 1.1.0e to crash (dependent on ciphersuite). Both clients and servers are affected.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
Source: openssl-security@openssl.org
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
Source: openssl-security@openssl.org
http://www.securityfocus.com/bid/96269
Source: openssl-security@openssl.org
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1037846
Source: openssl-security@openssl.org
https://github.com/openssl/openssl/commit/4ad93618d26a3ea23d36ad5498ff4f59eff3a4d2
Source: openssl-security@openssl.org
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03728en_us
Source: openssl-security@openssl.org
Third Party Advisory VDB Entry
https://www.openssl.org/news/secadv/20170216.txt
Source: openssl-security@openssl.org
Vendor Advisory
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
Source: openssl-security@openssl.org
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/bid/96269
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1037846
Source: af854a3a-2127-422b-91ae-364da2661108
https://github.com/openssl/openssl/commit/4ad93618d26a3ea23d36ad5498ff4f59eff3a4d2
Source: af854a3a-2127-422b-91ae-364da2661108
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03728en_us
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
https://www.openssl.org/news/secadv/20170216.txt
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
Source: af854a3a-2127-422b-91ae-364da2661108

16 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
12.9%
96th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-20

Affected Vendors

hp openssl

Related CVEs

CVE-2026-9677 N/A
CVE-2026-13245 6.1
CVE-2026-12404 5.3
CVE-2026-10820 N/A
CVE-2026-12415 9.8