RHSA-2011:1333 - Security Advisory

Topic

An updated Adobe Flash Player package that fixes multiple security issues
is now available for Red Hat Enterprise Linux 5 and 6 Supplementary.

The Red Hat Security Response Team has rated this update as having critical
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.

Description

The flash-plugin package contains a Mozilla Firefox compatible Adobe Flash
Player web browser plug-in.

This update fixes multiple vulnerabilities in Adobe Flash Player. These
vulnerabilities are detailed on the Adobe security page APSB11-26, listed
in the References section.

Multiple security flaws were found in the way flash-plugin displayed
certain SWF content. An attacker could use these flaws to create a
specially-crafted SWF file that would cause flash-plugin to crash or,
potentially, execute arbitrary code when the victim loaded a page
containing the specially-crafted SWF content. (CVE-2011-2426,
CVE-2011-2427, CVE-2011-2428, CVE-2011-2430)

A flaw in flash-plugin could allow an attacker to conduct cross-site
scripting (XSS) attacks if a victim were tricked into visiting a
specially-crafted web page. (CVE-2011-2444)

This update also fixes an information disclosure flaw in flash-plugin.
(CVE-2011-2429)

All users of Adobe Flash Player should install this updated package, which
upgrades Flash Player to version 10.3.183.10.

Solution

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

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/kb/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.1 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.1 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.1 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.1 i386

Fixes

• BZ - 740201 - CVE-2011-2444 flash-plugin: Cross-site scripting vulnerability fixed in APSB11-26
• BZ - 740204 - CVE-2011-2429 flash-plugin: security control bypass information disclosure fixed in APSB11-26
• BZ - 740388 - CVE-2011-2426 CVE-2011-2427 CVE-2011-2428 CVE-2011-2430 flash-plugin: critical flaws fixed in APSB11-26

CVEs

• CVE-2011-2429
• CVE-2011-2428
• CVE-2011-2430
• CVE-2011-2444
• CVE-2011-2427
• CVE-2011-2426

References

• https://access.redhat.com/security/updates/classification/#critical
• http://www.adobe.com/support/security/bulletins/apsb11-26.html