Executive Summary

Summary
Title exim4 security update
Informations
Name DSA-4110 First vendor Publication 2018-02-10
Vendor Debian Last vendor Modification 2018-02-10
Severity (Vendor) N/A Revision 1

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

Meh Chang discovered a buffer overflow flaw in a utility function used in the SMTP listener of Exim, a mail transport agent. A remote attacker can take advantage of this flaw to cause a denial of service, or potentially the execution of arbitrary code via a specially crafted message.

For the oldstable distribution (jessie), this problem has been fixed in version 4.84.2-2+deb8u5.

For the stable distribution (stretch), this problem has been fixed in version 4.89-2+deb9u3.

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/2018/dsa-4110

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 125
Os 3
Os 3

SAINT Exploits

Description Link
Exim SMTP listener base64d function one-character buffer overflow More info here

Snort® IPS/IDS

Date Description
2018-09-18 EHLO user overflow attempt
RuleID : 47541 - Revision : 2 - Type : SERVER-MAIL
2018-06-12 EHLO user overflow attempt
RuleID : 46610 - Revision : 3 - Type : SERVER-MAIL
2014-01-10 AUTH user overflow attempt
RuleID : 3824 - Revision : 16 - Type : SERVER-MAIL

Nessus® Vulnerability Scanner

Date Description
2018-03-09 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2018-970.nasl - Type : ACT_GATHER_INFO
2018-03-07 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201803-01.nasl - Type : ACT_GATHER_INFO
2018-03-06 Name : The remote mail server is potentially affected by a buffer overflow vulnerabi...
File : exim_4_90_1.nasl - Type : ACT_GATHER_INFO
2018-02-27 Name : The remote Fedora host is missing a security update.
File : fedora_2018-25a7ba3cb6.nasl - Type : ACT_GATHER_INFO
2018-02-27 Name : The remote Fedora host is missing a security update.
File : fedora_2018-5aec14e125.nasl - Type : ACT_GATHER_INFO
2018-02-12 Name : The remote Debian host is missing a security update.
File : debian_DLA-1274.nasl - Type : ACT_GATHER_INFO
2018-02-12 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4110.nasl - Type : ACT_GATHER_INFO
2018-02-12 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_316b3c3e0e9811e88d4197657151f8c2.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
Date Informations
2018-03-10 17:21:00
  • Multiple Updates
2018-02-10 21:19:46
  • First insertion