Executive Summary

Informations
Name CVE-2020-11501 First vendor Publication 2020-04-03
Vendor Cve Last vendor Modification 2021-07-21

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

GnuTLS 3.6.x before 3.6.13 uses incorrect cryptography for DTLS. The earliest affected version is 3.6.3 (2018-07-16) because of an error in a 2017-10-06 commit. The DTLS client always uses 32 '\0' bytes instead of a random value, and thus contributes no randomness to a DTLS negotiation. This breaks the security guarantees of the DTLS protocol.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11501

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-330 Use of Insufficiently Random Values

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 278
Os 1
Os 1
Os 2
Os 1

Sources (Detail)

Source Url
CONFIRM https://security.netapp.com/advisory/ntap-20200416-0002/
DEBIAN https://www.debian.org/security/2020/dsa-4652
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
GENTOO https://security.gentoo.org/glsa/202004-06
MISC https://gitlab.com/gnutls/gnutls/-/commit/5b595e8e52653f6c5726a4cdd8fddeb6e83...
https://gitlab.com/gnutls/gnutls/-/issues/960
https://www.gnutls.org/security-new.html#GNUTLS-SA-2020-03-31
SUSE http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00015.html
UBUNTU https://usn.ubuntu.com/4322-1/

Alert History

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Date Informations
2021-08-05 01:36:31
  • Multiple Updates
2021-07-21 17:24:12
  • Multiple Updates
2021-05-04 13:44:53
  • Multiple Updates
2021-04-22 02:56:43
  • Multiple Updates
2020-09-09 21:23:06
  • Multiple Updates
2020-06-13 05:22:44
  • Multiple Updates
2020-05-23 02:35:18
  • First insertion