Executive Summary

Summary
Title exim4 security update
Informations
Name DSA-4687 First vendor Publication 2020-05-16
Vendor Debian Last vendor Modification 2020-05-16
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:H/I:N/A:N
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 High
Integrity Impact None Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:N/A:N)
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

It was discovered that exim4, a mail transport agent, suffers from a authentication bypass vulnerability in the spa authentication driver. The spa authentication driver is not enabled by default.

For the oldstable distribution (stretch), this problem has been fixed in version 4.89-2+deb9u7.

For the stable distribution (buster), this problem has been fixed in version 4.92-8+deb10u4.

We recommend that you upgrade your exim4 packages.

For the detailed security status of exim4 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/exim4

Original Source

Url : http://www.debian.org/security/2020/dsa-4687

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-125 Out-of-bounds Read

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 140

Alert History

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0
1
Date Informations
2020-05-23 13:03:43
  • Multiple Updates
2020-05-16 17:18:17
  • First insertion