[gentoo-announce] [ GLSA 202103-03 ] OpenSSL: Multiple vulnerabilities

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Severity: Normal Title: OpenSSL: Multiple vulnerabilities Date: March 31, 2021 Bugs: #769785, #777681 ID: 202103-03
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Synopsis ========
Multiple vulnerabilities have been 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 ——————————————————————- 1 dev-libs/openssl < 1.1.1k >= 1.1.1k
Description ===========
Multiple vulnerabilities have been discovered in OpenSSL. Please review the CVE identifiers referenced below for details.
Impact ======
Please review the referenced CVE identifiers for details.
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-1.1.1k”
References ==========
[ 1 ] CVE-2021-23840 nvd.nist.gov/vuln/detail/CVE-2021-23840 [ 2 ] CVE-2021-23841 nvd.nist.gov/vuln/detail/CVE-2021-23841 [ 3 ] CVE-2021-3449 nvd.nist.gov/vuln/detail/CVE-2021-3449 [ 4 ] CVE-2021-3450 nvd.nist.gov/vuln/detail/CVE-2021-3450
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
security.gentoo.org/glsa/202103-03
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 bugs.gentoo.org.
License =======
Copyright 2021 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons – Attribution / Share Alike license.
creativecommons.org/licenses/by-sa/2.5