RHSA-2011:0177 - Security Advisory

Topic

Updated webkitgtk packages that fix several security issues are now
available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate
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

WebKitGTK+ is the port of the portable web rendering engine WebKit to the
GTK+ platform.

Multiple memory corruption flaws were found in WebKit. Malicious web
content could cause an application using WebKitGTK+ to crash or,
potentially, execute arbitrary code with the privileges of the user running
the application. (CVE-2010-1782, CVE-2010-1783, CVE-2010-1784,
CVE-2010-1785, CVE-2010-1787, CVE-2010-1788, CVE-2010-1790, CVE-2010-1792,
CVE-2010-1807, CVE-2010-1814, CVE-2010-3114, CVE-2010-3116, CVE-2010-3119,
CVE-2010-3255, CVE-2010-3812, CVE-2010-4198)

Multiple use-after-free flaws were found in WebKit. Malicious web content
could cause an application using WebKitGTK+ to crash or, potentially,
execute arbitrary code with the privileges of the user running the
application. (CVE-2010-1780, CVE-2010-1786, CVE-2010-1793, CVE-2010-1812,
CVE-2010-1815, CVE-2010-3113, CVE-2010-3257, CVE-2010-4197, CVE-2010-4204)

Two array index errors, leading to out-of-bounds memory reads, were found
in WebKit. Malicious web content could cause an application using
WebKitGTK+ to crash. (CVE-2010-4206, CVE-2010-4577)

A flaw in WebKit could allow malicious web content to trick a user into
thinking they are visiting the site reported by the location bar, when the
page is actually content controlled by an attacker. (CVE-2010-3115)

It was found that WebKit did not correctly restrict read access to images
created from the "canvas" element. Malicious web content could allow a
remote attacker to bypass the same-origin policy and potentially access
sensitive image data. (CVE-2010-3259)

A flaw was found in the way WebKit handled DNS prefetching. Even when it
was disabled, web content containing certain "link" elements could cause
WebKitGTK+ to perform DNS prefetching. (CVE-2010-3813)

Users of WebKitGTK+ should upgrade to these updated packages, which contain
WebKitGTK+ version 1.2.6, and resolve these issues. All running
applications that use WebKitGTK+ must be restarted for this update to take
effect.

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
http://kbase.redhat.com/faq/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 - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x

Fixes

• BZ - 627366 - CVE-2010-1780 CVE-2010-1782 CVE-2010-1783 CVE-2010-1784 CVE-2010-1785 CVE-2010-1786 CVE-2010-1787 CVE-2010-1788 CVE-2010-1790 CVE-2010-1792 CVE-2010-1793 WebKit: multiple vulnerabilities in WebKitGTK
• BZ - 627703 - CVE-2010-1807 webkit: input validation error when parsing certain NaN values
• BZ - 628032 - CVE-2010-3113 webkit: memory corruption when handling SVG documents
• BZ - 628035 - CVE-2010-3114 webkit: bad cast with text editing
• BZ - 628071 - CVE-2010-3115 webkit: address bar spoofing with history bug
• BZ - 628076 - CVE-2010-3119 webkit: DoS due to improper Ruby support
• BZ - 631939 - CVE-2010-1812 webkit: use-after-free flaw in handling of selections
• BZ - 631946 - CVE-2010-1814 webkit: memory corruption flaw when handling form menus
• BZ - 631948 - CVE-2010-1815 webkit: use-after-free flaw when handling scrollbars
• BZ - 640353 - CVE-2010-3116 webkit: memory corruption with MIME types
• BZ - 640357 - CVE-2010-3257 webkit: stale pointer issue with focusing
• BZ - 640360 - CVE-2010-3259 webkit: cross-origin image theft
• BZ - 645914 - CVE-2010-3255 webkit: DoS via improper handling of counter nodes
• BZ - 656115 - CVE-2010-4197 WebKit: Use-after-free vulnerabiity related to text editing causes memory corruption
• BZ - 656118 - CVE-2010-4198 WebKit: Memory corruption due to improper handling of large text area
• BZ - 656126 - CVE-2010-4204 WebKit: Use-after-free vulnerability related frame object
• BZ - 656129 - CVE-2010-4206 WebKit: Array index error during processing of an SVG document
• BZ - 667022 - CVE-2010-3812 webkit: Integer overflow in WebKit's handling of Text objects
• BZ - 667024 - CVE-2010-3813 webkit: HTMLLinkElement ignores dnsPrefetchingEnabled setting
• BZ - 667025 - CVE-2010-4577 webkit: CSS Font Face Parsing Type Confusion Vulnerability

CVEs

• CVE-2010-1807
• CVE-2010-1784
• CVE-2010-1785
• CVE-2010-1786
• CVE-2010-1787
• CVE-2010-1780
• CVE-2010-1782
• CVE-2010-1783
• CVE-2010-1788
• CVE-2010-4197
• CVE-2010-3812
• CVE-2010-3813
• CVE-2010-3259
• CVE-2010-3255
• CVE-2010-3257
• CVE-2010-4198
• CVE-2010-3113
• CVE-2010-3116
• CVE-2010-3115
• CVE-2010-3114
• CVE-2010-3119
• CVE-2010-1814
• CVE-2010-1815
• CVE-2010-1812
• CVE-2010-1793
• CVE-2010-1792
• CVE-2010-1790
• CVE-2010-4206
• CVE-2010-4204
• CVE-2010-4577

References

• https://access.redhat.com/security/updates/classification/#moderate