A large number of security issues were discovered in the WebKit browser and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting attacks, denial of service attacks, and arbitrary code execution.

Please consult the bug listed at the top of this advisory to get the exact list of CVE numbers fixed for each release.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Gustavo Noronha Silva reports :

The patches to fix the following CVEs are included with help from Vincent Danen and other members of the Red Hat security team:

The version of Google Chrome installed on the remote host is earlier than 5.0.375.127.  Such versions are reportedly affected by multiple vulnerabilities :

  - A memory corruption vulnerability exists with the file     dialog. (Issue #45400)

  - A memory corruption vulnerability exists when     processing SVG files. (Issue #49596)

  - A vulnerability exists due to a bad cast with text     editing. (Issue #49628)

  - A vulnerability exists that possibly allows address     bar spoofing via a history bug. (Issue #49964)

  - A memory corruption vulnerability exists in MIME type     handling. (Issue #50515, #51835)

  - A vulnerability exists due to a crash on shutdown via a     notifications bug. (Issue #50553)

  - A vulnerability can be triggered in omnibox autosuggest     if the user may be going to type a password.
    (Issue #51146)

  - A memory corruption vulnerability exists in ruby     support. (Issue #51654)

  - A memory corruption vulnerability exists in Geolocation     support. (Issue #51670)

- New stable release, API and ABI compatible with previous     1.2.x versions.

  - The patches to fix the following CVEs are included with     help from Vincent Danen and other members of the Red Hat     security team :

CVE-2010-3113 CVE-2010-1814 CVE-2010-1812 CVE-2010-1815 CVE-2010-3115 CVE-2010-1807 CVE-2010-3114 CVE-2010-3116 CVE-2010-3257 CVE-2010-3259

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

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)

All running applications that use WebKitGTK+ must be restarted for this update to take effect.

Multiple cross-site scripting, denial of service and arbitrary code execution security flaws were discovered in webkit.

Please consult the CVE web links for further information.

The updated packages have been upgraded to the latest version (1.2.7) to correct these issues.

From Red Hat Security Advisory 2011:0177 :

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.

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.

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.

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.

Versions of Google Chrome earlier than 5.0.375.127 are potentially affected by multiple vulnerabilities :

A memory corruption issue with file dialog. (Bug 45400)

A memory corruption issue with SVGs. (Bug 49596)

An issue relating to a bad cast with text editing. (Bug 49268)

  - A possible address bar spoofing vulnerability caused by a history bug. (Bug 49964)

  - A memory corruption issue in MIME type handling. (Bugs 50515, 51835)

A crash on shutdown due to a notifications bug. (Bug 50553)

Omnibox autosuggest is enabled when a user might be typing a password. (Bug 51146)

A memory corruption issue in Ruby support. (Bug 51654)

A memory corruption issue in Geolocation support. (51670)

ID	Name	Product	Family	Published	Updated	Severity
50046	Ubuntu 9.10 / 10.04 LTS / 10.10 : webkit vulnerabilities (USN-1006-1)	Nessus	Ubuntu Local Security Checks	10/20/2010	9/19/2019	critical
50075	FreeBSD : Webkit-gtk2 -- Multiple Vulnabilities (e5090d2a-dbbe-11df-82f8-0015f2db7bde)	Nessus	FreeBSD Local Security Checks	10/21/2010	1/6/2021	critical
48383	Google Chrome < 5.0.375.127 Multiple Vulnerabilities	Nessus	Windows	8/20/2010	4/11/2022	high
50034	Fedora 12 : webkitgtk-1.2.5-1.fc12 (2010-15982)	Nessus	Fedora Local Security Checks	10/20/2010	1/11/2021	critical
60943	Scientific Linux Security Update : webkitgtk on SL6.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	8/1/2012	1/14/2021	critical
52523	Mandriva Linux Security Advisory : webkit (MDVSA-2011:039)	Nessus	Mandriva Local Security Checks	3/3/2011	1/6/2021	critical
50030	Fedora 13 : webkitgtk-1.2.5-1.fc13 (2010-15957)	Nessus	Fedora Local Security Checks	10/20/2010	1/11/2021	critical
68187	Oracle Linux 6 : webkitgtk (ELSA-2011-0177)	Nessus	Oracle Linux Local Security Checks	7/12/2013	1/14/2021	critical
51672	RHEL 6 : webkitgtk (RHSA-2011:0177)	Nessus	Red Hat Local Security Checks	1/26/2011	1/14/2021	critical
800956	Google Chrome < 5.0.375.127 Multiple Vulnerabilities	Log Correlation Engine	Web Clients	8/20/2010		high

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