Executive Summary

Summary
Title openssl security update
Informations
Name DSA-4661 First vendor Publication 2020-04-21
Vendor Debian Last vendor Modification 2020-04-21
Severity (Vendor) N/A Revision 1

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

Bernd Edlinger discovered that malformed data passed to the SSL_check_chain() function during or after a TLS 1.3 handshake could cause a NULL dereference, resulting in denial of service.

The oldstable distribution (stretch) is not affected.

For the stable distribution (buster), this problem has been fixed in version 1.1.1d-0+deb10u3.

We recommend that you upgrade your openssl packages.

For the detailed security status of openssl please refer to its security tracker page at: https://security-tracker.debian.org/tracker/openssl

Original Source

Url : http://www.debian.org/security/2020/dsa-4661

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-476 NULL Pointer Dereference

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 11
Application 2
Application 1
Application 1
Application 1
Application 1
Application 1
Application 1
Application 355
Application 2
Application 1
Application 1
Application 472
Application 22
Application 3
Os 2
Os 3
Os 1
Os 1
Os 2

Alert History

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0
1
Date Informations
2020-05-23 13:03:43
  • Multiple Updates
2020-04-21 17:18:23
  • First insertion