Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title GnuTLS: Information disclosure
Informations
Name GLSA-202006-01 First vendor Publication 2020-06-09
Vendor Gentoo Last vendor Modification 2020-06-09
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Overall CVSS Score 7.4
Base Score 7.4 Environmental Score 7.4
impact SubScore 5.2 Temporal Score 7.4
Exploitabality Sub Score 2.2
 
Attack Vector Network Attack Complexity High
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:P/I:P/A:N)
Cvss Base Score 5.8 Attack Range Network
Cvss Impact Score 4.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

An information disclosure vulnerability in GnuTLS allow remote attackers to obtain sensitive information.

Background

GnuTLS is an Open Source implementation of the TLS and SSL protocols.

Description

A flaw was reported in the TLS session ticket key construction in GnuTLS.

Impact

A remote attacker could recover previous conversations in TLS 1.2 and obtain sensitive information or conduct a man-in-the-middle attack to bypass authentication in TLS 1.3.

Workaround

There is no known workaround at this time.

Resolution

All GnuTLS user should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-libs/gnutls-3.6.14"

References

[ 1 ] CVE-2020-13777 : https://nvd.nist.gov/vuln/detail/CVE-2020-13777

Availability

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

https://security.gentoo.org/glsa/202006-01

Original Source

Url : http://security.gentoo.org/glsa/glsa-202006-01.xml

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-327 Use of a Broken or Risky Cryptographic Algorithm (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 279
Os 2
Os 1
Os 2

Alert History

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0
Date Informations
2024-11-12 20:59:48
  • First insertion