Executive Summary

Summary
Title Fetchmail: Multiple vulnerabilities
Informations
Name GLSA-201006-12 First vendor Publication 2010-06-01
Vendor Gentoo Last vendor Modification 2010-06-01
Severity (Vendor) Normal 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:M/Au:N/C:P/I:P/A:P)
Cvss Base Score 6.8 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

Multiple vulnerabilities have been reported in Fetchmail, allowing remote attackers to execute arbitrary code or to conduct Man-in-the-Middle attacks.

Background

Fetchmail is a remote mail retrieval and forwarding utility.

Description

Multiple vulnerabilities have been reported in Fetchmail:

* The sdump() function might trigger a heap-based buffer overflow during the escaping of non-printable characters with the high bit set from an X.509 certificate (CVE-2010-0562).

* The vendor reported that Fetchmail does not properly handle Common Name (CN) fields in X.509 certificates that contain an ASCII NUL character. Specifically, the processing of such fields is stopped at the first occurrence of a NUL character. This type of vulnerability was recently discovered by Dan Kaminsky and Moxie Marlinspike (CVE-2009-2666).

Impact

A remote attacker could entice a user to connect with Fetchmail to a specially crafted SSL-enabled server in verbose mode, possibly resulting in the execution of arbitrary code with the privileges of the user running the application. NOTE: The issue is only existent on platforms on which char is signed.

Furthermore, a remote attacker might employ a specially crafted X.509
certificate, containing a NUL character in the Common Name field to conduct man-in-the-middle attacks on SSL connections made using Fetchmail.

Workaround

There is no known workaround at this time.

Resolution

All Fetchmail users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-mail/fetchmail-6.3.14"

References

[ 1 ] CVE-2010-0562 : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-0562
[ 2 ] CVE-2009-2666 : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2666

Availability

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

http://security.gentoo.org/glsa/glsa-201006-12.xml

Original Source

Url : http://security.gentoo.org/glsa/glsa-201006-12.xml

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-310 Cryptographic Issues
50 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:11059
 
Oval ID: oval:org.mitre.oval:def:11059
Title: socket.c in fetchmail before 6.3.11 does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
Description: socket.c in fetchmail before 6.3.11 does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
Family: unix Class: vulnerability
Reference(s): CVE-2009-2666
 Version: 5
Platform(s): Red Hat Enterprise Linux 3
CentOS Linux 3
Red Hat Enterprise Linux 4
CentOS Linux 4
Oracle Linux 4
Red Hat Enterprise Linux 5
CentOS Linux 5
Oracle Linux 5
 Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:13893
 
Oval ID: oval:org.mitre.oval:def:13893
Title: USN-816-1 -- fetchmail vulnerability
Description: Moxie Marlinspike discovered that fetchmail did not properly handle certificates with NULL characters in the certificate name. A remote attacker could exploit this to perform a man in the middle attack to view sensitive information or alter encrypted communications.
Family: unix Class: patch
Reference(s): USN-816-1
CVE-2009-2666
 Version: 5
Platform(s): Ubuntu 8.04
Ubuntu 9.04
Ubuntu 6.06
Ubuntu 8.10
 Product(s): fetchmail
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:22871
 
Oval ID: oval:org.mitre.oval:def:22871
Title: ELSA-2009:1427: fetchmail security update (Moderate)
Description: socket.c in fetchmail before 6.3.11 does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
Family: unix Class: patch
Reference(s): ELSA-2009:1427-01
CVE-2007-4565
CVE-2008-2711
CVE-2009-2666
 Version: 17
Platform(s): Oracle Linux 5
 Product(s): fetchmail
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:29379
 
Oval ID: oval:org.mitre.oval:def:29379
Title: RHSA-2009:1427 -- fetchmail security update (Moderate)
Description: An updated fetchmail package that fixes multiple security issues is now available for Red Hat Enterprise Linux 3, 4, and 5. This update has been rated as having moderate security impact by the Red Hat Security Response Team.
Family: unix Class: patch
Reference(s): RHSA-2009:1427
CESA-2009:1427-CentOS 3
CESA-2009:1427-CentOS 5
CVE-2007-4565
CVE-2008-2711
CVE-2009-2666
 Version: 3
Platform(s): Red Hat Enterprise Linux 5
Red Hat Enterprise Linux 3
Red Hat Enterprise Linux 4
CentOS Linux 3
CentOS Linux 5
 Product(s): fetchmail
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 122

OpenVAS Exploits

Date Description
2011-08-09 Name : CentOS Update for fetchmail CESA-2009:1427 centos3 i386
File : nvt/gb_CESA-2009_1427_fetchmail_centos3_i386.nasl
2011-08-09 Name : CentOS Update for fetchmail CESA-2009:1427 centos4 i386
File : nvt/gb_CESA-2009_1427_fetchmail_centos4_i386.nasl
2011-08-09 Name : CentOS Update for fetchmail CESA-2009:1427 centos5 i386
File : nvt/gb_CESA-2009_1427_fetchmail_centos5_i386.nasl
2011-03-09 Name : Gentoo Security Advisory GLSA 201006-12 (fetchmail)
File : nvt/glsa_201006_12.nasl
2010-05-12 Name : Mac OS X 10.6.2 Update / Mac OS X Security Update 2009-006
File : nvt/macosx_upd_10_6_2_secupd_2009-006.nasl
2010-03-12 Name : Fedora Update for fetchmail FEDORA-2010-3800
File : nvt/gb_fedora_2010_3800_fetchmail_fc12.nasl
2010-02-19 Name : Mandriva Update for fetchmail MDVSA-2010:037 (fetchmail)
File : nvt/gb_mandriva_MDVSA_2010_037.nasl
2010-02-18 Name : FreeBSD Ports: fetchmail
File : nvt/freebsd_fetchmail13.nasl
2009-12-10 Name : Mandriva Security Advisory MDVSA-2009:201-1 (fetchmail)
File : nvt/mdksa_2009_201_1.nasl
2009-10-13 Name : SLES10: Security update for fetchmail
File : nvt/sles10_fetchmail.nasl
2009-10-11 Name : SLES11: Security update for fetchmail
File : nvt/sles11_fetchmail.nasl
2009-10-10 Name : SLES9: Security update for fetchmail
File : nvt/sles9p5055302.nasl
2009-09-15 Name : CentOS Security Advisory CESA-2009:1427 (fetchmail)
File : nvt/ovcesa2009_1427.nasl
2009-09-09 Name : Fedora Core 11 FEDORA-2009-8780 (fetchmail)
File : nvt/fcore_2009_8780.nasl
2009-09-09 Name : Fedora Core 10 FEDORA-2009-8770 (fetchmail)
File : nvt/fcore_2009_8770.nasl
2009-09-09 Name : RedHat Security Advisory RHSA-2009:1427
File : nvt/RHSA_2009_1427.nasl
2009-08-17 Name : SuSE Security Advisory SUSE-SA:2009:044 (subversion)
File : nvt/suse_sa_2009_044.nasl
2009-08-17 Name : Ubuntu USN-816-1 (fetchmail)
File : nvt/ubuntu_816_1.nasl
2009-08-17 Name : Mandrake Security Advisory MDVSA-2009:201 (fetchmail)
File : nvt/mdksa_2009_201.nasl
2009-08-17 Name : FreeBSD Ports: fetchmail
File : nvt/freebsd_fetchmail12.nasl
2009-08-17 Name : Debian Security Advisory DSA 1852-1 (fetchmail)
File : nvt/deb_1852_1.nasl
0000-00-00 Name : Slackware Advisory SSA:2009-218-01 fetchmail
File : nvt/esoft_slk_ssa_2009_218_01.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
62114 fetchmail X.509 Certificate Printing sdump.c sdump() Function Overflow
56855 Fetchmail X.509 Certificate Authority (CA) Common Name Null Byte Handling SSL...

Nessus® Vulnerability Scanner

Date Description
2013-07-12 Name : The remote Oracle Linux host is missing a security update.
File : oraclelinux_ELSA-2009-1427.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing a security update.
File : sl_20090908_fetchmail_on_SL3_x.nasl - Type : ACT_GATHER_INFO
2010-07-30 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2010-037.nasl - Type : ACT_GATHER_INFO
2010-07-01 Name : The remote Fedora host is missing a security update.
File : fedora_2010-3800.nasl - Type : ACT_GATHER_INFO
2010-06-02 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201006-12.nasl - Type : ACT_GATHER_INFO
2010-02-24 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-1852.nasl - Type : ACT_GATHER_INFO
2010-02-19 Name : The remote openSUSE host is missing a security update.
File : suse_11_2_fetchmail-100216.nasl - Type : ACT_GATHER_INFO
2010-02-15 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_2a6a966f177411dfb5c10026189baca3.nasl - Type : ACT_GATHER_INFO
2009-11-09 Name : The remote host is missing a Mac OS X update that fixes various security issues.
File : macosx_10_6_2.nasl - Type : ACT_GATHER_INFO
2009-11-09 Name : The remote host is missing a Mac OS X update that fixes various security issues.
File : macosx_SecUpd2009-006.nasl - Type : ACT_GATHER_INFO
2009-10-06 Name : The remote openSUSE host is missing a security update.
File : suse_fetchmail-6410.nasl - Type : ACT_GATHER_INFO
2009-09-24 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_fetchmail-6409.nasl - Type : ACT_GATHER_INFO
2009-09-24 Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_fetchmail-090807.nasl - Type : ACT_GATHER_INFO
2009-09-24 Name : The remote SuSE 9 host is missing a security-related patch.
File : suse9_12468.nasl - Type : ACT_GATHER_INFO
2009-09-09 Name : The remote CentOS host is missing a security update.
File : centos_RHSA-2009-1427.nasl - Type : ACT_GATHER_INFO
2009-09-09 Name : The remote Red Hat host is missing a security update.
File : redhat-RHSA-2009-1427.nasl - Type : ACT_GATHER_INFO
2009-09-04 Name : The remote Fedora host is missing a security update.
File : fedora_2009-8780.nasl - Type : ACT_GATHER_INFO
2009-09-04 Name : The remote Fedora host is missing a security update.
File : fedora_2009-8770.nasl - Type : ACT_GATHER_INFO
2009-08-13 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2009-201.nasl - Type : ACT_GATHER_INFO
2009-08-13 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-816-1.nasl - Type : ACT_GATHER_INFO
2009-08-12 Name : The remote openSUSE host is missing a security update.
File : suse_11_0_fetchmail-090807.nasl - Type : ACT_GATHER_INFO
2009-08-12 Name : The remote openSUSE host is missing a security update.
File : suse_11_1_fetchmail-090807.nasl - Type : ACT_GATHER_INFO
2009-08-12 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_5179d85c868311de91b90022157515b2.nasl - Type : ACT_GATHER_INFO
2009-08-07 Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2009-218-01.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 11:36:52
  • Multiple Updates