GLSA 202004-10: OpenSSL: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	OpenSSL: Multiple vulnerabilities
Date:	04/23/2020
Bugs:	#702176, #717442
ID:	202004-10

Synopsis

Multiple vulnerabilities were found in OpenSSL, the worst of which could allow remote attackers to cause a Denial of Service condition.

Background

OpenSSL is an Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1/v1.1/v1.2/v1.3) as well as a general purpose cryptography library.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
dev-libs/openssl	< 1.1.1g	>= 1.1.1g	All supported architectures

Description

Multiple vulnerabilities have been discovered in OpenSSL. Please review the CVE identifiers referenced below for details.

Impact

A remote attacker could perform a malicious crafted TLS 1.3 handshake against an application using OpenSSL, possibly resulting in a Denial of Service condition.

In addition, it’s feasible that an attacker might attack DH512.

Workaround

There is no known workaround at this time.

Resolution

All OpenSSL users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=dev-libs/openssl-1.1.1g"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202004-10.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.