Low: erlang security and bug fix update

Synopsis

Low: erlang security and bug fix update

Type/Severity

Security Advisory: Low

Topic

An update for erlang is now available for Red Hat OpenStack Platform 11.0 (Ocata).

Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

Erlang is a general-purpose programming language and runtime environment. Erlang has built-in support for concurrency, distribution and fault tolerance.

Security Fix(es):

• An erlang TLS server configured with cipher suites using RSA key exchange, may be vulnerable to an Adaptive Chosen Ciphertext attack (AKA Bleichenbacher attack) against RSA. This may result in plain-text recovery of encrypted messages and/or a man-in-the-middle (MiTM) attack, despite the attacker not having gained access to the server’s private key itself. (CVE-2017-1000385)

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat OpenStack 11 x86_64

Fixes

• BZ - 1520400 - CVE-2017-1000385 erlang: TLS server vulnerable to Adaptive Chosen Ciphertext attack allowing plaintext recovery or MITM attack
• BZ - 1536064 - erl_epmd:port_please assumes ipv4

CVEs

• CVE-2017-1000385

References

• https://access.redhat.com/security/updates/classification/#low