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.
Advisories
Source ID Title
EUVD EUVD EUVD-2017-12850 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.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: openssl

Published:

Updated: 2024-09-16T16:18:03.381Z

Reserved: 2016-12-16T00:00:00

Link: CVE-2017-3733

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2017-05-04T19:29:00.430

Modified: 2025-04-20T01:37:25.860

Link: CVE-2017-3733

cve-icon Redhat

Severity : Important

Publid Date: 2017-02-16T00:00:00Z

Links: CVE-2017-3733 - Bugzilla

cve-icon OpenCVE Enrichment

No data.