GLSA 202012-13: OpenSSL: Denial of service

http://security.gentoo.org/

Severity:	low
Title:	OpenSSL: Denial of service
Date:	12/23/2020
Bugs:	#759079
ID:	202012-13

Synopsis

A vulnerability in OpenSSL might 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	< 1.1.1i	>= 1.1.1i	All supported architectures

Description

A null pointer dereference flaw was found in OpenSSL.

Impact

A remote attacker, able to control the arguments of the GENERAL_NAME_cmp function in an application linked against OpenSSL, could possibly cause a Denial of Service condition.

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-1.1.1i"

References

CVE-2020-1971

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202012-13.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.