Executive Summary

Summary
Title OpenSSL: Multiple vulnerabilities
Informations
Name GLSA-202004-10 First vendor Publication 2020-04-23
Vendor Gentoo Last vendor Modification 2020-04-23
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 7.5
Base Score 7.5 Environmental Score 7.5
impact SubScore 3.6 Temporal Score 7.5
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

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

[ 1 ] CVE-2019-1551 : https://nvd.nist.gov/vuln/detail/CVE-2019-1551
[ 2 ] CVE-2020-1967 : https://nvd.nist.gov/vuln/detail/CVE-2020-1967

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

https://security.gentoo.org/glsa/202004-10

Original Source

Url : http://security.gentoo.org/glsa/glsa-202004-10.xml

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-476 NULL Pointer Dereference
50 % CWE-200 Information Exposure

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 368
Os 1
Os 2
Os 1

Alert History

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0
1
Date Informations
2020-05-23 13:03:44
  • Multiple Updates
2020-04-23 17:18:17
  • First insertion