Executive Summary

Summary
Titleevolution-data-server security update
Informations
NameRHSA-2007:0344First vendor Publication2007-05-30
VendorRedHatLast vendor Modification2007-05-30
Severity (Vendor) ModerateRevision01

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:H/Au:N/C:P/I:N/A:N)
Cvss Base Score2.6Attack RangeNetwork
Cvss Impact Score2.9Attack ComplexityHigh
Cvss Expoit Score4.9AuthentificationNone Required
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

Updated evolution-data-server package that fixes a security bug are now
available for Red Hat Enterprise Linux 5.

This update has been rated as having moderate security impact by the Red
Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

3. Problem description:

The evolution-data-server package provides a unified backend for programs
that work with contacts, tasks, and calendar information.

A flaw was found in the way evolution-data-server processed certain APOP
authentication requests. By sending certain responses when
evolution-data-server attempted to authenticate against an APOP server, a
remote attacker could potentially acquire certain portions of a user's
authentication credentials. (CVE-2007-1558)

All users of evolution-data-server should upgrade to these updated
packages, which contain a backported patch which resolves this issue.

4. Solution:

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188

5. Bug IDs fixed (http://bugzilla.redhat.com/):

235289 - CVE-2007-1558 Evolution APOP information disclosure

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2007-0344.html

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:9782
 
Oval ID: oval:org.mitre.oval:def:9782
Title: The APOP protocol allows remote attackers to guess the first 3 characters of a password via man-in-the-middle (MITM) attacks that use crafted message IDs and MD5 collisions. NOTE: this design-level issue potentially affects all products that use APOP, including (1) Thunderbird 1.x before 1.5.0.12 and 2.x before 2.0.0.4, (2) Evolution, (3) mutt, (4) fetchmail before 6.3.8, (5) SeaMonkey 1.0.x before 1.0.9 and 1.1.x before 1.1.2, (6) Balsa 2.3.16 and earlier, (7) Mailfilter before 0.8.2, and possibly other products.
Description: The APOP protocol allows remote attackers to guess the first 3 characters of a password via man-in-the-middle (MITM) attacks that use crafted message IDs and MD5 collisions. NOTE: this design-level issue potentially affects all products that use APOP, including (1) Thunderbird 1.x before 1.5.0.12 and 2.x before 2.0.0.4, (2) Evolution, (3) mutt, (4) fetchmail before 6.3.8, (5) SeaMonkey 1.0.x before 1.0.9 and 1.1.x before 1.1.2, (6) Balsa 2.3.16 and earlier, (7) Mailfilter before 0.8.2, and possibly other products.
Family: unix Class: vulnerability
Reference(s): CVE-2007-1558
 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:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application1

Open Source Vulnerability Database (OSVDB)

idDescription
34856APOP Protocol MiTM Crafted IDs/MD5 Collision Cleartext Password Fragment Disc...