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Gentoo: 202012-13 Low Severity OpenSSL DoS Threat Detected

gentoo
Calendar Grey December 23, 2020
Dist Gentoo Esm H88
A security vulnerability in OpenSSL impacts Gentoo Linux users. It is advisable for all to perform an upgrade.
A vulnerability in OpenSSL might allow remote attackers to cause a Denial of Service condition.

Summary

A null pointer dereference flaw was found in OpenSSL.

Topics%20covered

Topics Covered

security advisory denial of service gentoo security fix low severity openssl

Resolution

All OpenSSL users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/openssl-1.1.1i"

References

[ 1 ] CVE-2020-1971 https://nvd.nist.gov/vuln/detail/CVE-2020-1971

Availability

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

Severity
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Severity: Low
Title: OpenSSL: Denial of service
Date: December 23, 2020
Bugs: #759079
ID: 202012-13

Topics%20covered

Topics Covered

security advisory denial of service gentoo security fix low severity openssl

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.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/openssl < 1.1.1i >= 1.1.1i

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.

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