Description
OTP is a set of Erlang libraries, which consists of the Erlang runtime system, a number of ready-to-use components mainly written in Erlang, and a set of design principles for Erlang programs. A regression was introduced into the ssl application of OTP starting at OTP-25.3.2.8, OTP-26.2, and OTP-27.0, resulting in a server or client verifying the peer when incorrect extended key usage is presented (i.e., a server will verify a client if they have server auth ext key usage and vice versa).
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low
Affected products
- erlang / OTP>= 25.3.2.8, <= 25.3.2.16 – >= 25.3.2.8, <= 25.3.2.16
- erlang / OTP>= 26.2, <= 26.2.5.6 – >= 26.2, <= 26.2.5.6
- erlang / OTP>= 27.0, <= 27.1.3 – >= 27.0, <= 27.1.3