Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 5.0 and Thunderbird through 3.1.11 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

From Red Hat Security Advisory 2011:0888 :

Updated SeaMonkey packages that fix several security issues are now available for Red Hat Enterprise Linux 4.

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.

SeaMonkey is an open source web browser, email and newsgroup client, IRC chat client, and HTML editor.

A flaw was found in the way SeaMonkey handled malformed JPEG images. A website containing a malicious JPEG image could cause SeaMonkey to crash or, potentially, execute arbitrary code with the privileges of the user running SeaMonkey. (CVE-2011-2377)

Multiple dangling pointer flaws were found in SeaMonkey. A web page containing malicious content could cause SeaMonkey to crash or, potentially, execute arbitrary code with the privileges of the user running SeaMonkey. (CVE-2011-0083, CVE-2011-0085, CVE-2011-2363)

Several flaws were found in the processing of malformed web content. A web page containing malicious content could cause SeaMonkey to crash or, potentially, execute arbitrary code with the privileges of the user running SeaMonkey. (CVE-2011-2364, CVE-2011-2365, CVE-2011-2374, CVE-2011-2375, CVE-2011-2376)

An integer overflow flaw was found in the way SeaMonkey handled JavaScript Array objects. A website containing malicious JavaScript could cause SeaMonkey to execute that JavaScript with the privileges of the user running SeaMonkey. (CVE-2011-2371)

A use-after-free flaw was found in the way SeaMonkey handled malformed JavaScript. A website containing malicious JavaScript could cause SeaMonkey to execute that JavaScript with the privileges of the user running SeaMonkey. (CVE-2011-2373)

It was found that SeaMonkey could treat two separate cookies as interchangeable if both were for the same domain name but one of those domain names had a trailing '.' character. This violates the same-origin policy and could possibly lead to data being leaked to the wrong domain. (CVE-2011-2362)

All SeaMonkey users should upgrade to these updated packages, which correct these issues. After installing the update, SeaMonkey must be restarted for the changes to take effect.

From Red Hat Security Advisory 2011:0887 :

An updated thunderbird package that fixes several security issues is now available for Red Hat Enterprise Linux 4 and 5.

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.

Mozilla Thunderbird is a standalone mail and newsgroup client.

A flaw was found in the way Thunderbird handled malformed JPEG images.
An HTML mail message containing a malicious JPEG image could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2011-2377)

Multiple dangling pointer flaws were found in Thunderbird. Malicious HTML content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird.
(CVE-2011-0083, CVE-2011-0085, CVE-2011-2363)

Several flaws were found in the processing of malformed HTML content.
Malicious HTML content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2011-2364, CVE-2011-2365, CVE-2011-2374, CVE-2011-2375, CVE-2011-2376)

An integer overflow flaw was found in the way Thunderbird handled JavaScript Array objects. Malicious content could cause Thunderbird to execute JavaScript with the privileges of the user running Thunderbird. (CVE-2011-2371)

A use-after-free flaw was found in the way Thunderbird handled malformed JavaScript. Malicious content could cause Thunderbird to execute JavaScript with the privileges of the user running Thunderbird. (CVE-2011-2373)

It was found that Thunderbird could treat two separate cookies (for web content) as interchangeable if both were for the same domain name but one of those domain names had a trailing '.' character. This violates the same-origin policy and could possibly lead to data being leaked to the wrong domain. (CVE-2011-2362)

All Thunderbird users should upgrade to this updated package, which resolves these issues. All running instances of Thunderbird must be restarted for the update to take effect.

The remote Oracle Linux 6 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2011-0886 advisory.

    [3.1.11-1.0.1.el6_1]
    - Replaced thunderbird-redhat-default-prefs.js with       thunderbird-oracle-default-prefs.js
    - Replace clean.gif in tarball

    [3.1.11-2]
    - Update to 3.1.11

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2011-0885 advisory.

    firefox:

    [3.6.18-1.0.1.el6_1]
    - Added firefox-oracle-default-prefs.js and removed firefox-redhat-default-prefs.js

    [3.6.18-1]
    - Update to 3.6.18

    xulrunner:

    [1.9.2.18-2.0.1.el6_1]
    - Replace xulrunner-redhat-default-prefs.js with       xulrunner-oracle-default-prefs.js

    [1.9.2.18-2]
    - Update to 1.9.2.18

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote host is affected by the vulnerability described in GLSA-201301-01 (Mozilla Products: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in Mozilla Firefox,       Thunderbird, SeaMonkey, NSS, GNU IceCat, and XULRunner. Please review the       CVE identifiers referenced below for details.
  Impact :

    A remote attacker could entice a user to view a specially crafted web       page or email, possibly resulting in execution of arbitrary code or a       Denial of Service condition. Furthermore, a remote attacker may be able       to perform Man-in-the-Middle attacks, obtain sensitive information,       bypass restrictions and protection mechanisms, force file downloads,       conduct XML injection attacks, conduct XSS attacks, bypass the Same       Origin Policy, spoof URL&rsquo;s for phishing attacks, trigger a vertical       scroll, spoof the location bar, spoof an SSL indicator, modify the       browser&rsquo;s font, conduct clickjacking attacks, or have other unspecified       impact.
    A local attacker could gain escalated privileges, obtain sensitive       information, or replace an arbitrary downloaded file.
  Workaround :

    There is no known workaround at this time.

The installed version of SeaMonkey is earlier than 2.2.0.  As such, it is potentially affected by the following security issues :

  - Errors in the WebGL implementation can allow the     loading of WebGL textures from cross-domain images or     allow the crash of the application and execution of     arbitrary code. (CVE-2011-2366, CVE-2011-2368)

  - An out-of-bounds read error exists in the WebGL     implementation that can lead to crashes and may allow     an attacker to read arbitrary data from the GPU,     including that of other processes. (CVE-2011-2367)

  - An error exists in the decoding of HTML-encoded     entities contained in SVG elements. This error could lead     to cross-site scripting attacks. (CVE-2011-2369)

  - An unspecified error exists that allows non-whitelisted     sites to trigger an install dialog for add-ons and     themes. (CVE-2011-2370)

  - When a JavaScript Array object has its length set to an     extremely large value, the iteration of array elements     that occurs when its reduceRight method is called could     result in code execution due to an invalid index value     being used. (CVE-2011-2371)

  - A use-after-free error when viewing XUL documents with     scripts disabled could lead to code execution.
    (CVE-2011-2373)

  - Multiple memory safety issues can lead to application     crashes and possibly remote code execution.
    (CVE-2011-2375)

  - A memory corruption issue due to multipart /     x-mixed-replace images could lead to memory corruption.
    (CVE-2011-2377)

Updated SeaMonkey packages that fix several security issues are now available for Red Hat Enterprise Linux 4.

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.

SeaMonkey is an open source web browser, email and newsgroup client, IRC chat client, and HTML editor.

A flaw was found in the way SeaMonkey handled malformed JPEG images. A website containing a malicious JPEG image could cause SeaMonkey to crash or, potentially, execute arbitrary code with the privileges of the user running SeaMonkey. (CVE-2011-2377)

Multiple dangling pointer flaws were found in SeaMonkey. A web page containing malicious content could cause SeaMonkey to crash or, potentially, execute arbitrary code with the privileges of the user running SeaMonkey. (CVE-2011-0083, CVE-2011-0085, CVE-2011-2363)

Several flaws were found in the processing of malformed web content. A web page containing malicious content could cause SeaMonkey to crash or, potentially, execute arbitrary code with the privileges of the user running SeaMonkey. (CVE-2011-2364, CVE-2011-2365, CVE-2011-2374, CVE-2011-2375, CVE-2011-2376)

An integer overflow flaw was found in the way SeaMonkey handled JavaScript Array objects. A website containing malicious JavaScript could cause SeaMonkey to execute that JavaScript with the privileges of the user running SeaMonkey. (CVE-2011-2371)

A use-after-free flaw was found in the way SeaMonkey handled malformed JavaScript. A website containing malicious JavaScript could cause SeaMonkey to execute that JavaScript with the privileges of the user running SeaMonkey. (CVE-2011-2373)

It was found that SeaMonkey could treat two separate cookies as interchangeable if both were for the same domain name but one of those domain names had a trailing '.' character. This violates the same-origin policy and could possibly lead to data being leaked to the wrong domain. (CVE-2011-2362)

All SeaMonkey users should upgrade to these updated packages, which correct these issues. After installing the update, SeaMonkey must be restarted for the changes to take effect.

The installed version of Firefox is earlier than 5.0 and thus, is potentially affected by the following security issues :

  - Multiple memory safety issues can lead to application     crashes and possibly remote code execution.
    (CVE-2011-2374, CVE-2011-2375)

  - A use-after-free issue when viewing XUL documents with     scripts disabled could lead to code execution.
    (CVE-2011-2373)

  - A memory corruption issue due to multipart /     x-mixed-replace images could lead to memory corruption.
    (CVE-2011-2377)

  - When a JavaScript Array object has its length set to an     extremely large value, the iteration of array elements     that occurs when its reduceRight method is called could     result in code execution due to an invalid index value     being used. (CVE-2011-2371)

  - It is possible for an image from a different domain to     be loaded into a WebGL texture which could be used to     steal image data from a different site. (CVE-2011-2366,     CVE-2011-2598)

  - An out-of-bounds read issue and an invalid write issue     could cause the application to crash. (CVE-2011-2367,     CVE-2011-2368)

  - HTML-encoded entities are improperly decoded when     displayed inside SVG elements which could lead to     cross-site scripting attacks. (CVE-2011-2369)

  - It is possible for a non-whitelisted site to trigger an     install dialog for add-ons and themes. (CVE-2011-2370)

USN-1157-1 fixed vulnerabilities in Firefox. Unfortunately, this update produced the side effect of pulling in Firefox on some systems that did not have it installed during a dist-upgrade due to changes in the Ubuntu language packs. This update fixes the problem. We apologize for the inconvenience.

Bob Clary, Kevin Brosnan, Gary Kwong, Jesse Ruderman, Christian Biesinger, Bas Schouten, Igor Bukanov, Bill McCloskey, Olli Pettay, Daniel Veditz and Marcia Knous discovered multiple memory vulnerabilities in the browser rendering engine. An attacker could possibly execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2011-2374, CVE-2011-2375)

Martin Barbella discovered that under certain conditions, viewing a XUL document while JavaScript was disabled caused deleted memory to be accessed. An attacker could potentially use this to crash Firefox or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2011-2373)

Jordi Chancel discovered a vulnerability on multipart/x-mixed-replace images due to memory corruption.
An attacker could potentially use this to crash Firefox or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2011-2377)

Chris Rohlf and Yan Ivnitskiy discovered an integer overflow vulnerability in JavaScript Arrays. An attacker could potentially use this to execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2011-2371)

It was discovered that Firefox's WebGL textures did not honor same-origin policy. If a user were tricked into viewing a malicious site, an attacker could potentially view image data from a different site. (CVE-2011-2366)

Christoph Diehl discovered an out-of-bounds read vulnerability in WebGL code. An attacker could potentially read data that other processes had stored in the GPU.
(CVE-2011-2367)

Christoph Diehl discovered an invalid write vulnerability in WebGL code. An attacker could potentially use this to execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2011-2368)

It was discovered that an unauthorized site could trigger an installation dialog for addons and themes. If a user were tricked into viewing a malicious site, an attacker could possibly trick the user into installing a malicious addon or theme. (CVE-2011-2370)

Mario Heiderich discovered a vulnerability in displaying decoded HTML-encoded entities inside SVG elements. An attacker could utilize this to perform cross-site scripting attacks. (CVE-2011-2369).

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.

USN-1157-1 fixed vulnerabilities in Firefox. This update provides updated packages for use with Firefox 5.

Bob Clary, Kevin Brosnan, Gary Kwong, Jesse Ruderman, Christian Biesinger, Bas Schouten, Igor Bukanov, Bill McCloskey, Olli Pettay, Daniel Veditz and Marcia Knous discovered multiple memory vulnerabilities in the browser rendering engine. An attacker could possibly execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2011-2374, CVE-2011-2375)

Martin Barbella discovered that under certain conditions, viewing a XUL document while JavaScript was disabled caused deleted memory to be accessed. An attacker could potentially use this to crash Firefox or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2011-2373)

Jordi Chancel discovered a vulnerability on multipart/x-mixed-replace images due to memory corruption.
An attacker could potentially use this to crash Firefox or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2011-2377)

Chris Rohlf and Yan Ivnitskiy discovered an integer overflow vulnerability in JavaScript Arrays. An attacker could potentially use this to execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2011-2371)

It was discovered that Firefox's WebGL textures did not honor same-origin policy. If a user were tricked into viewing a malicious site, an attacker could potentially view image data from a different site. (CVE-2011-2366)

Christoph Diehl discovered an out-of-bounds read vulnerability in WebGL code. An attacker could potentially read data that other processes had stored in the GPU.
(CVE-2011-2367)

Christoph Diehl discovered an invalid write vulnerability in WebGL code. An attacker could potentially use this to execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2011-2368)

It was discovered that an unauthorized site could trigger an installation dialog for addons and themes. If a user were tricked into viewing a malicious site, an attacker could possibly trick the user into installing a malicious addon or theme. (CVE-2011-2370)

Mario Heiderich discovered a vulnerability in displaying decoded HTML-encoded entities inside SVG elements. An attacker could utilize this to perform cross-site scripting attacks. (CVE-2011-2369).

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.

Bob Clary, Kevin Brosnan, Gary Kwong, Jesse Ruderman, Christian Biesinger, Bas Schouten, Igor Bukanov, Bill McCloskey, Olli Pettay, Daniel Veditz and Marcia Knous discovered multiple memory vulnerabilities in the browser rendering engine. An attacker could possibly execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2011-2374, CVE-2011-2375)

Martin Barbella discovered that under certain conditions, viewing a XUL document while JavaScript was disabled caused deleted memory to be accessed. An attacker could potentially use this to crash Firefox or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2011-2373)

Jordi Chancel discovered a vulnerability on multipart/x-mixed-replace images due to memory corruption. An attacker could potentially use this to crash Firefox or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2011-2377)

Chris Rohlf and Yan Ivnitskiy discovered an integer overflow vulnerability in JavaScript Arrays. An attacker could potentially use this to execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2011-2371)

It was discovered that Firefox's WebGL textures did not honor same-origin policy. If a user were tricked into viewing a malicious site, an attacker could potentially view image data from a different site. (CVE-2011-2366)

Christoph Diehl discovered an out-of-bounds read vulnerability in WebGL code. An attacker could potentially read data that other processes had stored in the GPU. (CVE-2011-2367)

Christoph Diehl discovered an invalid write vulnerability in WebGL code. An attacker could potentially use this to execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2011-2368)

It was discovered that an unauthorized site could trigger an installation dialog for addons and themes. If a user were tricked into viewing a malicious site, an attacker could possibly trick the user into installing a malicious addon or theme. (CVE-2011-2370)

Mario Heiderich discovered a vulnerability in displaying decoded HTML-encoded entities inside SVG elements. An attacker could utilize this to perform cross-site scripting attacks. (CVE-2011-2369).

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.

Security issues were identified and fixed in mozilla firefox and thunderbird :

Security researcher regenrecht reported via TippingPoint's Zero Day Initiative two instances of code which modifies SVG element lists failed to account for changes made to the list by user-supplied callbacks before accessing list elements. If a user-supplied callback deleted such an object, the element-modifying code could wind up accessing deleted memory and potentially executing attacker-controlled memory. regenrecht also reported via TippingPoint's Zero Day Initiative that a XUL document could force the nsXULCommandDispatcher to remove all command updaters from the queue, including the one currently in use. This could result in the execution of deleted memory which an attacker could use to run arbitrary code on a victim's computer (CVE-2011-0083, CVE-2011-0085, CVE-2011-2363).

Mozilla security researcher David Chan reported that cookies set for example.com. (note the trailing dot) and example.com were treated as interchangeable. This is a violation of same-origin conventions and could potentially lead to leakage of cookie data to the wrong party (CVE-2011-2362).

Mozilla developers identified and fixed several memory safety bugs in the browser engine used in Firefox and other Mozilla-based products.
Some of these bugs showed evidence of memory corruption under certain circumstances, and we presume that with enough effort at least some of these could be exploited to run arbitrary code (CVE-2011-2364, CVE-2011-2365, CVE-2011-2374, CVE-2011-2375, CVE-2011-2376).

Security researchers Chris Rohlf and Yan Ivnitskiy of Matasano Security reported that when a JavaScript Array object had its length set to an extremely large value, the iteration of array elements that occurs when its reduceRight method was subsequently called could result in the execution of attacker controlled memory due to an invalid index value being used to access element properties (CVE-2011-2371).

Security researcher Martin Barbella reported that under certain conditions, viewing a XUL document while JavaScript was disabled caused deleted memory to be accessed. This flaw could potentially be used by an attacker to crash a victim's browser and run arbitrary code on their computer (CVE-2011-2373).

Security researcher Jordi Chancel reported a crash on multipart/x-mixed-replace images due to memory corruption (CVE-2011-2377).

Packages for 2009.0 are provided as of the Extended Maintenance Program. Please visit this link to learn more:
http://store.mandriva.com/product_info.php?cPath=149 products_id=490

Additionally, some packages which require so, have been rebuilt and are being provided as updates.

An updated thunderbird package that fixes several security issues is now available for Red Hat Enterprise Linux 4 and 5.

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.

Mozilla Thunderbird is a standalone mail and newsgroup client.

A flaw was found in the way Thunderbird handled malformed JPEG images.
An HTML mail message containing a malicious JPEG image could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2011-2377)

Multiple dangling pointer flaws were found in Thunderbird. Malicious HTML content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird.
(CVE-2011-0083, CVE-2011-0085, CVE-2011-2363)

Several flaws were found in the processing of malformed HTML content.
Malicious HTML content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2011-2364, CVE-2011-2365, CVE-2011-2374, CVE-2011-2375, CVE-2011-2376)

An integer overflow flaw was found in the way Thunderbird handled JavaScript Array objects. Malicious content could cause Thunderbird to execute JavaScript with the privileges of the user running Thunderbird. (CVE-2011-2371)

A use-after-free flaw was found in the way Thunderbird handled malformed JavaScript. Malicious content could cause Thunderbird to execute JavaScript with the privileges of the user running Thunderbird. (CVE-2011-2373)

It was found that Thunderbird could treat two separate cookies (for web content) as interchangeable if both were for the same domain name but one of those domain names had a trailing '.' character. This violates the same-origin policy and could possibly lead to data being leaked to the wrong domain. (CVE-2011-2362)

All Thunderbird users should upgrade to this updated package, which resolves these issues. All running instances of Thunderbird must be restarted for the update to take effect.

Updated firefox packages that fix several security issues and one bug are now available for Red Hat Enterprise Linux 4, 5, and 6.

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.

Mozilla Firefox is an open source web browser. XULRunner provides the XUL Runtime environment for Mozilla Firefox.

A flaw was found in the way Firefox handled malformed JPEG images. A website containing a malicious JPEG image could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox. (CVE-2011-2377)

Multiple dangling pointer flaws were found in Firefox. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox. (CVE-2011-0083, CVE-2011-0085, CVE-2011-2363)

Several flaws were found in the processing of malformed web content. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox. (CVE-2011-2364, CVE-2011-2365, CVE-2011-2374, CVE-2011-2375, CVE-2011-2376)

An integer overflow flaw was found in the way Firefox handled JavaScript Array objects. A website containing malicious JavaScript could cause Firefox to execute that JavaScript with the privileges of the user running Firefox. (CVE-2011-2371)

A use-after-free flaw was found in the way Firefox handled malformed JavaScript. A website containing malicious JavaScript could cause Firefox to execute that JavaScript with the privileges of the user running Firefox. (CVE-2011-2373)

It was found that Firefox could treat two separate cookies as interchangeable if both were for the same domain name but one of those domain names had a trailing '.' character. This violates the same-origin policy and could possibly lead to data being leaked to the wrong domain. (CVE-2011-2362)

For technical details regarding these flaws, refer to the Mozilla security advisories for Firefox 3.6.18. You can find a link to the Mozilla advisories in the References section of this erratum.

This update also fixes the following bug :

* With previous versions of Firefox on Red Hat Enterprise Linux 5, the 'background-repeat' CSS (Cascading Style Sheets) property did not work (such images were not displayed and repeated as expected). (BZ#698313)

All Firefox users should upgrade to these updated packages, which contain Firefox version 3.6.18, which corrects these issues. After installing the update, Firefox must be restarted for the changes to take effect.

The remote Redhat Enterprise Linux 4 / 5 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2011:0887 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    A flaw was found in the way Thunderbird handled malformed JPEG images. An     HTML mail message containing a malicious JPEG image could cause Thunderbird     to crash or, potentially, execute arbitrary code with the privileges of the     user running Thunderbird. (CVE-2011-2377)

    Multiple dangling pointer flaws were found in Thunderbird. Malicious HTML     content could cause Thunderbird to crash or, potentially, execute arbitrary     code with the privileges of the user running Thunderbird. (CVE-2011-0083,     CVE-2011-0085, CVE-2011-2363)

    Several flaws were found in the processing of malformed HTML content.
    Malicious HTML content could cause Thunderbird to crash or, potentially,     execute arbitrary code with the privileges of the user running Thunderbird.
    (CVE-2011-2364, CVE-2011-2365, CVE-2011-2374, CVE-2011-2375, CVE-2011-2376)

    An integer overflow flaw was found in the way Thunderbird handled     JavaScript Array objects. Malicious content could cause Thunderbird to     execute JavaScript with the privileges of the user running Thunderbird.
    (CVE-2011-2371)

    A use-after-free flaw was found in the way Thunderbird handled malformed     JavaScript. Malicious content could cause Thunderbird to execute JavaScript     with the privileges of the user running Thunderbird. (CVE-2011-2373)

    It was found that Thunderbird could treat two separate cookies (for web     content) as interchangeable if both were for the same domain name but one     of those domain names had a trailing . character. This violates the     same-origin policy and could possibly lead to data being leaked to the     wrong domain. (CVE-2011-2362)

    All Thunderbird users should upgrade to this updated package, which     resolves these issues. All running instances of Thunderbird must be     restarted for the update to take effect.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

An updated thunderbird package that fixes several security issues is now available for Red Hat Enterprise Linux 6.

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.

Mozilla Thunderbird is a standalone mail and newsgroup client.

A flaw was found in the way Thunderbird handled malformed JPEG images.
An HTML mail message containing a malicious JPEG image could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2011-2377)

Multiple dangling pointer flaws were found in Thunderbird. Malicious HTML content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird.
(CVE-2011-0083, CVE-2011-0085, CVE-2011-2363)

Several flaws were found in the processing of malformed HTML content.
Malicious HTML content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2011-2364, CVE-2011-2365, CVE-2011-2374, CVE-2011-2375, CVE-2011-2376)

It was found that Thunderbird could treat two separate cookies (for web content) as interchangeable if both were for the same domain name but one of those domain names had a trailing '.' character. This violates the same-origin policy and could possibly lead to data being leaked to the wrong domain. (CVE-2011-2362)

All Thunderbird users should upgrade to this updated package, which resolves these issues. All running instances of Thunderbird must be restarted for the update to take effect.

The remote host has a web browser installed that is vulnerable to multiple attack vectors.

Versions of Firefox greater than 4.0 and earlier than 5.0 are potentially affected by multiple vulnerabilities : 

  - Multiple memory safety issues can lead to application crashes and possibly remote code execution. (CVE-2011-2374, CVE-2011-2375, CVE-2011-2605)

  - A use-after-free issue when viewing XUL documents with scripts disabled could lead to code execution. (CVE-2011-2373)

  - A memory corruption issue due to multipart/x-mixed-replace images could lead to memory corruption. (CVE-2011-2377)

  - When a JavaScript Array object has its length set to an extremely large value, the iteration of array elements that occurs when its reduceRight method is called could result in code execution due to an invalid index value being used. (CVE-2011-2371)

  - It is possible for an image from a different domain to be loaded into a WebGL texture which could be used to steal image data from a different site. (CVE-2011-2366)

  - An out-of-bounds read issue and an invalid write issue could cause the application to crash. (CVE-2011-2367, CVE-2011-2368)

  - HTML-encoded entities are improperly decoded when displayed inside SVG elements which could lead to cross-site scripting attacks. (CVE-2011-2369)

  - It is possible for a non-whitelisted site to trigger an install dialog for add-ons and themes. (CVE-2011-2370)

The remote host has a web browser installed that is vulnerable to multiple attack vectors.  

Versions of Firefox greater than 4.0 and earlier than 5.0 are potentially affected by multiple vulnerabilities : 

 - Multiple memory safety issues can lead to application crashes and possibly remote code execution. (CVE-2011-2374, CVE-2011-2375, CVE-2011-2605)
 - A use-after-free issue when viewing XUL documents with scripts disabled could lead to code execution. (CVE-2011-2373)
 - A memory corruption issue due to multipart/x-mixed-replace images could lead to memory corruption. (CVE-2011-2377)
 - When a JavaScript Array object has its length set to an extremely large value, the iteration of array elements that occurs when its reduceRight method is called could result in code execution due to an invalid index value being used. (CVE-2011-2371)
 - It is possible for an image from a different domain to be loaded into a WebGL texture which could be used to steal image data from a different site. (CVE-2011-2366)
 - An out-of-bounds read issue and an invalid write issue could cause the application to crash. (CVE-2011-2367, CVE-2011-2368)
 - HTML-encoded entities are improperly decoded when displayed inside SVG elements which could lead to cross-site scripting attacks. (CVE-2011-2369)
 - It is possible for a non-whitelisted site to trigger an install dialog for add-ons and themes. (CVE-2011-2370)

The installed version of Firefox 4 is potentially affected by the following security issues :

  - Multiple memory safety issues can lead to application     crashes and possibly remote code execution.
    (CVE-2011-2374, CVE-2011-2375)

  - A use-after-free issue when viewing XUL documents with     scripts disabled could lead to code execution.
    (CVE-2011-2373)

  - A memory corruption issue due to multipart /     x-mixed-replace images could lead to memory corruption.
    (CVE-2011-2377)

  - When a JavaScript Array object has its length set to an     extremely large value, the iteration of array elements     that occurs when its reduceRight method is called could     result in code execution due to an invalid index value     being used. (CVE-2011-2371)

  - It is possible for an image from a different domain to     be loaded into a WebGL texture which could be used to     steal image data from a different site. (CVE-2011-2366,     CVE-2011-2598)

  - An out-of-bounds read issue and an invalid write issue     could cause the application to crash. (CVE-2011-2367,     CVE-2011-2368)

  - HTML-encoded entities are improperly decoded when     displayed inside SVG elements which could lead to     cross-site scripting attacks. (CVE-2011-2369)

  - It is possible for a non-whitelisted site to trigger an     install dialog for add-ons and themes. (CVE-2011-2370)

ID	Name	Product	Family	Severity
68296	Oracle Linux 4 : seamonkey (ELSA-2011-0888)	Nessus	Oracle Linux Local Security Checks	critical
68295	Oracle Linux 4 : thunderbird (ELSA-2011-0887)	Nessus	Oracle Linux Local Security Checks	critical
68294	Oracle Linux 6 : thunderbird (ELSA-2011-0886)	Nessus	Oracle Linux Local Security Checks	high
68293	Oracle Linux 5 / 6 : firefox (ELSA-2011-0885)	Nessus	Oracle Linux Local Security Checks	high
63402	GLSA-201301-01 : Mozilla Products: Multiple vulnerabilities (BEAST)	Nessus	Gentoo Local Security Checks	critical
55884	SeaMonkey < 2.2.0 Multiple Vulnerabilities	Nessus	Windows	high
55836	CentOS 4 : seamonkey (CESA-2011:0888)	Nessus	CentOS Local Security Checks	critical
55419	Firefox < 5.0 Multiple Vulnerabilities (Mac OS X)	Nessus	MacOS X Local Security Checks	high
55413	Ubuntu 11.04 : firefox regression (USN-1157-3)	Nessus	Ubuntu Local Security Checks	critical
55409	Ubuntu 11.04 : mozvoikko, ubufox, webfav update (USN-1157-2)	Nessus	Ubuntu Local Security Checks	critical
55408	Ubuntu 11.04 : firefox vulnerabilities (USN-1157-1)	Nessus	Ubuntu Local Security Checks	critical
55406	Mandriva Linux Security Advisory : mozilla (MDVSA-2011:111)	Nessus	Mandriva Local Security Checks	critical
55405	CentOS 4 / 5 : thunderbird (CESA-2011:0887)	Nessus	CentOS Local Security Checks	critical
55404	CentOS 4 / 5 : firefox (CESA-2011:0885)	Nessus	CentOS Local Security Checks	critical
55401	RHEL 4 : seamonkey (RHSA-2011:0888)	Nessus	Red Hat Local Security Checks	critical
55400	RHEL 4 / 5 : thunderbird (RHSA-2011:0887)	Nessus	Red Hat Local Security Checks	high
55399	RHEL 6 : thunderbird (RHSA-2011:0886)	Nessus	Red Hat Local Security Checks	critical
55398	RHEL 4 / 5 / 6 : firefox (RHSA-2011:0885)	Nessus	Red Hat Local Security Checks	critical
801231	Mozilla Firefox > 4.0 and < 5.0 Multiple Vulnerabilities	Log Correlation Engine	Web Clients	high
5965	Mozilla Firefox > 4.0 and < 5.0 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	high
55288	Firefox 4 Multiple Vulnerabilities	Nessus	Windows	high

Detections

Analytics

CVE-2011-2375

high

Tenable Plugins

critical

critical

high

high

critical

high

critical

high

critical

critical

critical

critical

critical

critical

critical

high

critical

critical

high

high

high