Synopsis

Important: evolution28 security update

Type/Severity

Security Advisory: Important

Topic

Updated evolution28 packages that address two buffer overflow
vulnerabilities are now available for Red Hat Enterprise Linux 4.

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

Description

Evolution is the integrated collection of e-mail, calendaring, contact
management, communications and personal information management (PIM) tools
for the GNOME desktop environment.

A flaw was found in the way Evolution parsed iCalendar timezone attachment
data. If the Itip Formatter plug-in was disabled and a user opened a mail
with a carefully crafted iCalendar attachment, arbitrary code could be
executed as the user running Evolution. (CVE-2008-1108)

Note: the Itip Formatter plug-in, which allows calendar information
(attachments with a MIME type of "text/calendar") to be displayed as part
of the e-mail message, is enabled by default.

A heap-based buffer overflow flaw was found in the way Evolution parsed
iCalendar attachments with an overly long "DESCRIPTION" property string. If
a user responded to a carefully crafted iCalendar attachment in a
particular way, arbitrary code could be executed as the user running
Evolution. (CVE-2008-1109).

The particular response required to trigger this vulnerability was as
follows:

1. Receive the carefully crafted iCalendar attachment.
2. Accept the associated meeting.
3. Open the calender the meeting was in.
4. Reply to the sender.

Red Hat would like to thank Alin Rad Pop of Secunia Research for
responsibly disclosing these issues.

All Evolution users should upgrade to these updated packages, which contain
backported patches which resolves these issues.

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

Affected Products

• Red Hat Enterprise Linux Server 4 x86_64
• Red Hat Enterprise Linux Server 4 ia64
• Red Hat Enterprise Linux Server 4 i386
• Red Hat Enterprise Linux Server - Extended Update Support 4.6 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support 4.6 ia64
• Red Hat Enterprise Linux Server - Extended Update Support 4.6 i386
• Red Hat Enterprise Linux Workstation 4 x86_64
• Red Hat Enterprise Linux Workstation 4 ia64
• Red Hat Enterprise Linux Workstation 4 i386
• Red Hat Enterprise Linux Desktop 4 x86_64
• Red Hat Enterprise Linux Desktop 4 i386
• Red Hat Enterprise Linux for IBM z Systems 4 s390x
• Red Hat Enterprise Linux for IBM z Systems 4 s390
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.6 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.6 s390
• Red Hat Enterprise Linux for Power, big endian 4 ppc
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 4.6 ppc

Fixes

• BZ - 448540 - CVE-2008-1108 evolution: iCalendar buffer overflow via large timezone specification
• BZ - 448541 - CVE-2008-1109 evolution: iCalendar buffer overflow via large description parameter

CVEs

• CVE-2008-1109
• CVE-2008-1108

References

• http://www.redhat.com/security/updates/classification/#important

Red Hat Enterprise Linux for IBM z Systems 4

SRPM
s390
evolution28-2.8.0-53.el4_6.3.s390.rpm	SHA-256: 53b6b4de2c143458124bd9403f319bfd8c54a20d400fd394d3951e42a2fcb5a7
evolution28-devel-2.8.0-53.el4_6.3.s390.rpm	SHA-256: c0d4eefee2327bb33dd824520d19f12c235edd49c079d90ac6fb85559f01639b

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.6

SRPM
s390
evolution28-2.8.0-53.el4_6.3.s390.rpm	SHA-256: 53b6b4de2c143458124bd9403f319bfd8c54a20d400fd394d3951e42a2fcb5a7
evolution28-devel-2.8.0-53.el4_6.3.s390.rpm	SHA-256: c0d4eefee2327bb33dd824520d19f12c235edd49c079d90ac6fb85559f01639b