Executive Summary

Summary
Title New exim4 packages fix remote code execution
Informations
Name DSA-2131 First vendor Publication 2010-12-10
Vendor Debian Last vendor Modification 2010-12-10
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:M/Au:N/C:C/I:C/A:C)
Cvss Base Score 9.3 Attack Range Network
Cvss Impact Score 10 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Several vulnerabilities have been found in exim4 that allow a remote attacker to execute arbitrary code as root user. Exploits for these issues have been seen in the wild.

This update fixes a memory corruption issue that allows a remote attacker to execute arbitrary code as the Debian-exim user (CVE-2010-4344).

A fix for an additional issue that allows the Debian-exim user to obtain root privileges (CVE-2010-4345) is currently being checked for compatibility issues. It is not yet included in this upgrade but will released soon in an update to this advisory.

For the stable distribution (lenny), this problem has been fixed in version 4.69-9+lenny1.

This advisory only contains the packages for the alpha, amd64, hppa, i386, ia64, powerpc, and s390 architectures. The packages for the arm, armel, mips, mipsel, and sparc architectures will be released as soon as they are built.

For the testing distribution (squeeze) and the unstable distribution (sid), this problem has been fixed in version 4.70-1.

We strongly recommend that you upgrade your exim4 packages.

Original Source

Url : http://www.debian.org/security/2010/dsa-2131

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-264 Permissions, Privileges, and Access Controls
50 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:12720
 
Oval ID: oval:org.mitre.oval:def:12720
Title: DSA-2131-1 exim4 -- arbitrary code execution
Description: Several vulnerabilities have been found in exim4 that allow a remote attacker to execute arbitrary code as root user. Exploits for these issues have been seen in the wild. This update fixes a memory corruption issue that allows a remote attacker to execute arbitrary code as the Debian-exim user. A fix for an additional issue that allows the Debian-exim user to obtain root privileges is currently being checked for compatibility issues. It is not yet included in this upgrade but will released soon in an update to this advisory. For the stable distribution, this problem has been fixed in version 4.69-9+lenny1. This advisory only contains the packages for the alpha, amd64, hppa, i386, ia64, powerpc, and s390 architectures. The packages for the arm, armel, mips, mipsel, and sparc architectures will be released as soon as they are built. For the testing distribution and the unstable distribution, this problem has been fixed in version 4.70-1. We strongly recommend that you upgrade your exim4 packages.
Family: unix Class: patch
Reference(s): DSA-2131-1
CVE-2010-4344
CVE-2010-4345
Version: 5
Platform(s): Debian GNU/Linux 5.0
Product(s): exim4
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:13170
 
Oval ID: oval:org.mitre.oval:def:13170
Title: USN-1032-1 -- exim4 vulnerability
Description: Sergey Kononenko and Eugene Bujak discovered that Exim did not correctly truncate string expansions. A remote attacker could send specially crafted email traffic to run arbitrary code as the Exim user, which could also lead to root privileges.
Family: unix Class: patch
Reference(s): USN-1032-1
CVE-2010-4344
Version: 5
Platform(s): Ubuntu 8.04
Ubuntu 9.10
Ubuntu 6.06
Product(s): exim4
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:21735
 
Oval ID: oval:org.mitre.oval:def:21735
Title: RHSA-2011:0153: exim security update (Moderate)
Description: Exim 4.72 and earlier allows local users to gain privileges by leveraging the ability of the exim user account to specify an alternate configuration file with a directive that contains arbitrary commands, as demonstrated by the spool_directory directive.
Family: unix Class: patch
Reference(s): RHSA-2011:0153-01
CESA-2011:0153
CVE-2010-4345
Version: 4
Platform(s): Red Hat Enterprise Linux 5
CentOS Linux 5
Product(s): exim
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:22059
 
Oval ID: oval:org.mitre.oval:def:22059
Title: RHSA-2010:0970: exim security update (Critical)
Description: Heap-based buffer overflow in the string_vformat function in string.c in Exim before 4.70 allows remote attackers to execute arbitrary code via an SMTP session that includes two MAIL commands in conjunction with a large message containing crafted headers, leading to improper rejection logging.
Family: unix Class: patch
Reference(s): RHSA-2010:0970-01
CVE-2010-4344
Version: 4
Platform(s): Red Hat Enterprise Linux 5
Product(s): exim
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:22839
 
Oval ID: oval:org.mitre.oval:def:22839
Title: ELSA-2011:0153: exim security update (Moderate)
Description: Exim 4.72 and earlier allows local users to gain privileges by leveraging the ability of the exim user account to specify an alternate configuration file with a directive that contains arbitrary commands, as demonstrated by the spool_directory directive.
Family: unix Class: patch
Reference(s): ELSA-2011:0153-01
CVE-2010-4345
Version: 6
Platform(s): Oracle Linux 5
Product(s): exim
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:23061
 
Oval ID: oval:org.mitre.oval:def:23061
Title: ELSA-2010:0970: exim security update (Critical)
Description: Heap-based buffer overflow in the string_vformat function in string.c in Exim before 4.70 allows remote attackers to execute arbitrary code via an SMTP session that includes two MAIL commands in conjunction with a large message containing crafted headers, leading to improper rejection logging.
Family: unix Class: patch
Reference(s): ELSA-2010:0970-01
CVE-2010-4344
Version: 6
Platform(s): Oracle Linux 5
Product(s): exim
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 69

ExploitDB Exploits

id Description
2010-12-16 Exim4 <= 4.69 string_format Function Heap Buffer Overflow

OpenVAS Exploits

Date Description
2012-07-30 Name : CentOS Update for exim CESA-2010:0970 centos4 x86_64
File : nvt/gb_CESA-2010_0970_exim_centos4_x86_64.nasl
2012-07-30 Name : CentOS Update for exim CESA-2011:0153 centos4 x86_64
File : nvt/gb_CESA-2011_0153_exim_centos4_x86_64.nasl
2012-07-30 Name : CentOS Update for exim CESA-2011:0153 centos5 x86_64
File : nvt/gb_CESA-2011_0153_exim_centos5_x86_64.nasl
2011-08-09 Name : CentOS Update for exim CESA-2011:0153 centos5 i386
File : nvt/gb_CESA-2011_0153_exim_centos5_i386.nasl
2011-02-11 Name : Ubuntu Update for exim4 vulnerabilities USN-1060-1
File : nvt/gb_ubuntu_USN_1060_1.nasl
2011-01-31 Name : CentOS Update for exim CESA-2010:0970 centos4 i386
File : nvt/gb_CESA-2010_0970_exim_centos4_i386.nasl
2011-01-31 Name : CentOS Update for exim CESA-2011:0153 centos4 i386
File : nvt/gb_CESA-2011_0153_exim_centos4_i386.nasl
2011-01-24 Name : FreeBSD Ports: exim
File : nvt/freebsd_exim1.nasl
2011-01-21 Name : RedHat Update for exim RHSA-2011:0153-01
File : nvt/gb_RHSA-2011_0153-01_exim.nasl
2011-01-04 Name : SuSE Update for exim SUSE-SA:2010:059
File : nvt/gb_suse_2010_059.nasl
2010-12-28 Name : RedHat Update for exim RHSA-2010:0970-01
File : nvt/gb_RHSA-2010_0970-01_exim.nasl
2010-12-28 Name : Ubuntu Update for exim4 vulnerability USN-1032-1
File : nvt/gb_ubuntu_USN_1032_1.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
69860 Exim exim User Account Configuration File Directive Local Privilege Escalation

Exim contains a flaw that may allow an attacker to gain access to unauthorized privileges. The issue is triggered when an attacker leverages the ability of an exim user account to specify an alternate configuration file with a directive that contains arbitrary commands, allowing a local attacker to gain root privileges.
69685 Exim string_format Function Remote Overflow

Exim is prone to a remote overflow condition. The string_format function fails to properly sanitize user-supplied input resulting in a heap buffer overflow. With a specially crafted request, a local attacker can potentially cause arbitrary code execution.

Nessus® Vulnerability Scanner

Date Description
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : suse_11_3_exim-101211.nasl - Type : ACT_GATHER_INFO
2014-01-28 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201401-32.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2010-0970.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2011-0153.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20110117_exim_on_SL4_x.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20101210_exim_on_SL4_x.nasl - Type : ACT_GATHER_INFO
2011-05-05 Name : The remote openSUSE host is missing a security update.
File : suse_11_2_exim-101211.nasl - Type : ACT_GATHER_INFO
2011-05-05 Name : The remote openSUSE host is missing a security update.
File : suse_11_1_exim-101211.nasl - Type : ACT_GATHER_INFO
2011-02-11 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1060-1.nasl - Type : ACT_GATHER_INFO
2011-01-31 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2154.nasl - Type : ACT_GATHER_INFO
2011-01-28 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2011-0153.nasl - Type : ACT_GATHER_INFO
2011-01-28 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2010-0970.nasl - Type : ACT_GATHER_INFO
2011-01-18 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2011-0153.nasl - Type : ACT_GATHER_INFO
2011-01-10 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_e4fcf020044711e0becc0022156e8794.nasl - Type : ACT_GATHER_INFO
2010-12-15 Name : The remote service has a buffer overflow.
File : exim_string_vformat.nasl - Type : ACT_ATTACK
2010-12-12 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2010-0970.nasl - Type : ACT_GATHER_INFO
2010-12-12 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1032-1.nasl - Type : ACT_GATHER_INFO
2010-12-12 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2131.nasl - Type : ACT_GATHER_INFO

Alert History

If you want to see full details history, please login or register.
0
Date Informations
2014-02-17 11:29:45
  • Multiple Updates