WebKit, as used in Google Chrome before 7.0.517.44, webkitgtk before 1.2.6, and other products, does not properly handle large text areas, which allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a crafted HTML document.

The remote host is affected by the vulnerability described in GLSA-201412-09 (Multiple packages, Multiple vulnerabilities fixed in 2011)

    Vulnerabilities have been discovered in the packages listed below.
      Please review the CVE identifiers in the Reference section for details.
      FMOD Studio       PEAR Mail       LVM2       GnuCash       xine-lib       Last.fm Scrobbler       WebKitGTK+       shadow tool suite       PEAR       unixODBC       Resource Agents       mrouted       rsync       XML Security Library       xrdb       Vino       OProfile       syslog-ng       sFlow Toolkit       GNOME Display Manager       libsoup       CA Certificates       Gitolite       QtCreator       Racer   Impact :

    A context-dependent attacker may be able to gain escalated privileges,       execute arbitrary code, cause Denial of Service, obtain sensitive       information, or otherwise bypass security restrictions.
  Workaround :

    There are no known workarounds at this time.

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.

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.

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.

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.

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.

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.

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

    - Fixes crashes with newer libpng (>= 1.4)

    - The patches to fix the following CVEs are included       with help from Huzaifa Sidhpurwala <huzaifas at       redhat.com> from the Red Hat security team

CVE-2010-4198 CVE-2010-4197 CVE-2010-4204 CVE-2010-4206 CVE-2010-1791 CVE-2010-3812 CVE-2010-3813 CVE-2010-4577

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.

Gustavo Noronha Silva reports :

The patches to fix the following CVEs are included with help from Huzaifa Sidhpurwala from the Red Hat security team.

Versions of Google Chrome earlier than 7.0.517.44 are potentially affected by multiple vulnerabilities :

  - A use-after-free error exists in text editing. (51602)

  - A memory corruption error exists relating to enormous text area. (55257)

  - A bad cast exists with the SVG use element. (58657)

  - An invalid memory read exists in XPath handling. (58731)

  - A use-after-free error exists in text-control-selections. (58741)

  - Multiple integer overflows exists in font handling. (59320)

  - A memory corruption issue exists in libvpx. (60055)

  - A bad use of a destroyed frame object exists. (60238)

  - Multiple type confusions exists with event objects. (60327, 60769, 61255)

  - An out-of-bounds array access exists in SVG handling. (60688)

The version of Google Chrome installed on the remote host is earlier than 7.0.517.44.  Such versions are reportedly affected by multiple vulnerabilities :

  - A use-after-free error exists in text editing.
    (Issue #51602)

  - A memory corruption error exists relating to enormous     text area. (Issue #55257)

  - A bad cast exists with the SVG use element.
    (Issue #58657)

  - An invalid memory read exists in XPath handling.
    (Issue #58731)

  - A use-after-free error exists in text control     selections. (Issue #58741)

  - A memory corruption issue exists in libvpx.
    (Issue #60055)

  - A bad use of a destroyed frame object exists.
    (Issue #60238)

  - Multiple type confusions exists with event objects.
    (Issue #60327, #60769, #61255)

  - An out-of-bounds array access exists in SVG handling.
    (Issue #60688)

ID	Name	Product	Family	Severity
79962	GLSA-201412-09 : Multiple packages, Multiple vulnerabilities fixed in 2011	Nessus	Gentoo Local Security Checks	critical
68187	Oracle Linux 6 : webkitgtk (ELSA-2011-0177)	Nessus	Oracle Linux Local Security Checks	critical
60943	Scientific Linux Security Update : webkitgtk on SL6.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	critical
55967	Ubuntu 10.04 LTS / 10.10 : webkit vulnerabilities (USN-1195-1)	Nessus	Ubuntu Local Security Checks	critical
52523	Mandriva Linux Security Advisory : webkit (MDVSA-2011:039)	Nessus	Mandriva Local Security Checks	critical
51672	RHEL 6 : webkitgtk (RHSA-2011:0177)	Nessus	Red Hat Local Security Checks	critical
51444	Fedora 13 : webkitgtk-1.2.6-1.fc13 (2011-0121)	Nessus	Fedora Local Security Checks	high
51404	FreeBSD : webkit-gtk2 -- Multiple vulnerabilities (06a12e26-142e-11e0-bea2-0015f2db7bde)	Nessus	FreeBSD Local Security Checks	high
800908	Google Chrome < 7.0.517.44 Multiple Vulnerabilities	Log Correlation Engine	Web Clients	high
50476	Google Chrome < 7.0.517.44 Multiple Vulnerabilities	Nessus	Windows	high

Detections

Analytics

CVE-2010-4198

high

Tenable Plugins

critical

critical

critical

critical

critical

critical

high

high

high

high