SSL: OpenSSL Encrypt-Then-Mac Renegotiation Denial of Service
This vulnerability is in OpenSSL due to improper handling of the Encrypt-Then-Mac extension during renegotiation. successful exploitation can lead to to denial of Service.
Extended 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.
Affected Products
Openssl openssl
References
CVE: CVE-2017-3733
Short Name
SSL:OPENSSL-ETM-REN-DOS
Severity
Major
Recommended
True
Recommended Action
Drop
Category
SSL
Keywords
CVE-2017-3733 Denial Encrypt-Then-Mac OpenSSL Renegotiation Service of
Release Date
03/02/2017
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3375
False Positive
Unknown
Vendors
Hp
Openssl
CVSS Score
5.0