Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title Exim: Heap-based buffer overflow
Informations
Name GLSA-202003-47 First vendor Publication 2020-03-20
Vendor Gentoo Last vendor Modification 2020-03-20
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

A vulnerability in Exim could allow a remote attacker to execute arbitrary code.

Background

Exim is a message transfer agent (MTA) designed to be a a highly configurable, drop-in replacement for sendmail.

Description

It was discovered that Exim incorrectly handled certain string operations.

Impact

A remote attacker, able to connect to a vulnerable Exim instance, could possibly execute arbitrary code with the privileges of the process or cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All Exim users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-mta/exim-4.92.3"

References

[ 1 ] CVE-2019-16928 : https://nvd.nist.gov/vuln/detail/CVE-2019-16928

Availability

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

https://security.gentoo.org/glsa/202003-47

Original Source

Url : http://security.gentoo.org/glsa/glsa-202003-47.xml

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-787 Out-of-bounds Write (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 141
Os 1
Os 1
Os 3

Snort® IPS/IDS

Date Description
2018-06-12 EHLO user overflow attempt
RuleID : 46610 - Revision : 3 - Type : SERVER-MAIL

Alert History

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0
Date Informations
2020-03-20 21:18:11
  • First insertion