Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
TitleExim: Heap-based buffer overflow
Informations
NameGLSA-202003-47First vendor Publication2020-03-20
VendorGentooLast vendor Modification2020-03-20
Severity (Vendor) N/ARevisionN/A

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score7.5Attack RangeNetwork
Cvss Impact Score6.4Attack ComplexityLow
Cvss Expoit Score10AuthenticationNone 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

%idName
100 %CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application9
Os1
Os1

Snort® IPS/IDS

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

Alert History

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