Executive Summary

Summary
Title Exim: Local privilege escalation
Informations
Name GLSA-201709-19 First vendor Publication 2017-09-24
Vendor Gentoo Last vendor Modification 2017-09-24
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:L/AC:L/Au:N/C:N/I:P/A:N)
Cvss Base Score 2.1 Attack Range Local
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

A vulnerability in Exim may allow local users to gain root privileges.

Background

Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.

Description

Exim supports the use of multiple "-p" command line arguments causing a memory leak. This could lead to a stack-clash in user-space and as result the attacker can, "clash" or "smash" the stack or another memory region, or "jump" over the stack guard-page.

Impact

A local attacker could obtain root privileges.

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-4.89-r1"

References

[ 1 ] CVE-2017-1000369 : https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-1000369

Availability

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

https://security.gentoo.org/glsa/201709-19

Original Source

Url : http://security.gentoo.org/glsa/glsa-201709-19.xml

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-404 Improper Resource Shutdown or Release

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 115
Os 2

Nessus® Vulnerability Scanner

Date Description
2017-10-23 Name : The remote device is affected by multiple vulnerabilities.
File : juniper_space_jsa_10826.nasl - Type : ACT_GATHER_INFO
2017-09-25 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201709-19.nasl - Type : ACT_GATHER_INFO
2017-09-01 Name : The remote Fedora host is missing a security update.
File : fedora_2017-f5177f3a16.nasl - Type : ACT_GATHER_INFO
2017-08-30 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2017-980.nasl - Type : ACT_GATHER_INFO
2017-06-30 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2017-714.nasl - Type : ACT_GATHER_INFO
2017-06-26 Name : The remote Debian host is missing a security update.
File : debian_DLA-1001.nasl - Type : ACT_GATHER_INFO
2017-06-22 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_8c1a271d56cf11e7b9fec13eb7bcbf4f.nasl - Type : ACT_GATHER_INFO
2017-06-20 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3888.nasl - Type : ACT_GATHER_INFO
2017-06-20 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-3322-1.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
Date Informations
2017-09-26 13:24:57
  • Multiple Updates
2017-09-24 21:23:21
  • First insertion