From Red Hat Security Advisory 2010:0333 :

Updated SeaMonkey packages that fix several security issues are now available for Red Hat Enterprise Linux 3 and 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.

Several use-after-free flaws were found in SeaMonkey. Visiting a web page containing malicious content could result in SeaMonkey executing arbitrary code with the privileges of the user running SeaMonkey.
(CVE-2010-0175, CVE-2010-0176, CVE-2010-0177)

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-2010-0174)

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 remote host is running a version of Mozilla Firefox 3.6.x prior to 3.6.2. Such versions are potentially affected by multiple security issues :

 - The WOFF decoder contains an integer overflow in a font decrompression routine. (MFSA 2010-08)
 - Deleted image frames are reused when handling 'multipart/x-mixed-replace' images. (MFSA 2010-09)
 - The 'window.location' object is made a normal overridable object. (MFSA 2010-10)
 - Multiple crashes can result in arbitrary code execution. (MFSA 2010-11)
 - A cross-site scripting issue when using 'addEventListener' and 'setTimeout' on a wrapped object. (MFSA 2010-12)
 - Documents fail to call certain security checks when attempting to preload images. (MFSA 2010-13)
 - It is possible to corrupt a user's XUL cache. (MFSA 2010-14)
 - The asynchronous Authorization Prompt is not always attached to the correct window. (MFSA 2010-15)
 - Multiple crashes cna result in arbitrary code execution. (MFSA 2010-16)
 - An error exists in the way '<option>' elements are inserted into a XUL tree '<optgroup>'. (MFSA 2010-18)
 - An error exists in the implementation of the 'windows.navigator.plugins' object. (MFSA 2010-19)
 - A browser applet can be used to turn a simple mouse click into a drag-and-drop action, potentially resulting in the unintended loading of resources in a user's browser. (MFSA 2010-20)
 - Session renegotiations are not handled properly, which can be exploited to insert arbitrary plaintext by a man-in-the-middle. (MFSA 2010-22)
 - When an image points to a resource that redirects to a 'mailto: ' URL, the external mail handler application is launched. (MFSA 2010-23)
 - XML documents fail to call certain security checks when loading new content. (MFSA 2010-24)

The remote host is running a version of SeaMonkey earlier than 2.0.4.  Such versions are potentially affected by multiple security issues : 

  - Multiple crashes can result in arbitrary code execution. (MFSA 2010-16)

  - A select event handler for XUL tree items can be called after the item is deleted. (MFSA 2010-17)

  - An error exists in the way '<option>' elements are inserted into a XUL tree '<optgroup>'. (MFSA 2010-18)

  - An error exists in the implementation of the 'windows.navigator.plugins' object. (MFSA 2010-19)

  - A browser applet can be used to turn a simple mouse click into a drag-and-drop action, potentially resulting in the unintended loading of resources in a user's browser. (MFSA 2010-20)

  Session renegotiations are not handled properly, which can be exploited to insert arbitrary plaintext by a man-in-the-middle. (MFSA 2010-22)

  - When an image points to a resource that redirects to a 'mailto: ' URL, the external mail handler application is launched. (MFSA 2010-23)

  - XML documents fail to call certain security checks when loading new content. (MFSA 2010-24)

The remote host is running a version of Mozilla Firefox earlier than 3.0.19.  Such versions are potentially affected by multiple security issues : 

 - Multiple crashes can result in arbitrary code execution. (MFSA 2010-16)
 - A select event handler for XUL tree items can be called after the item is deleted. (MFSA 2010-17)
 - An error exists in the way '<option>' elements are inserted into a XUL tree '<optgroup>'. (MFSA 2010-18)
 - An error exists in the implementation of the 'windows.navigator.plugins' object. (MFSA 2010-19)
 - A browser applet can be used to turn a simple mouse click into a drag-and-drop action, potentially resulting in the unintended loading of resources in a user's browser. (MFSA 2010-20)
 - The XMLHttpRequestSpy module in the Firebug add-on exposes an underlying chrome privilege escalation vulnerability. (MFSA 2010-21)

Versions of Mozilla Thunderbird prior to 3.0.4 are affected by the following vulnerabilities :

 - Multiple crashes can result in arbitrary code execution. (MFSA 2010-16)
 - A select event handler for XUL tree items can be called after the item is deleted. (MFSA 2010-17)
 - An error exists in the way '<option>' elements are inserted into a XUL tree '<optgroup>'. (MFSA 2010-18)
 - Session renegotiations are not handled properly, which can be exploited to insert arbitrary plaintext by a man-in-the-middle. (MFSA 2010-22)
 - XML documents fail to call certain security checks when loading new content. (MFSA 2010-24)

The remote host is running a version of Mozilla Firefox earlier than 3.5.9.  Such versions are potentially affected by multiple security issues : 

 - Multiple crashes can result in arbitrary code execution. (MFSA 2010-16)
 - A select event handler for XUL tree items can be called after the item is deleted. (MFSA 2010-17)
 - An error exists in the way '<option>' elements are inserted into a XUL tree '<optgroup>'. (MFSA 2010-18)
 - An error exists in the implementation of the 'windows.navigator.plugins' object. (MFSA 2010-19)
 - A browser applet can be used to turn a simple mouse click into a drag-and-drop action, potentially resulting in the unintended loading of resources in a user's browser. (MFSA 2010-20)
 Session renegotiations are not handled properly, which can be exploited to insert arbitrary plaintext by a man-in-the-middle. (MFSA 2010-22)
 - When an image points to a resource that redirects to a 'mailto: ' URL, the external mail handler application is launched. (MFSA 2010-23)
 - XML documents fail to call certain security checks when laoding new content. (MFSA 2010-24)

ID	Name	Product	Family	Published	Updated	Severity
68027	Oracle Linux 3 / 4 : seamonkey (ELSA-2010-0333)	Nessus	Oracle Linux Local Security Checks	7/12/2013	1/14/2021	critical
5485	Mozilla Firefox 3.6.x < 3.6.2 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	3/23/2010	3/6/2019	medium
5495	SeaMonkey < 2.0.4 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	3/31/2010	3/6/2019	medium
5493	Mozilla Firefox < 3.0.19 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	3/31/2010	3/6/2019	medium
5496	Mozilla Thunderbird < 3.0.4 Multiple Vulnerabilities	Nessus Network Monitor	SMTP Clients	3/31/2010	3/6/2019	medium
5494	Mozilla Firefox < 3.5.9 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	3/31/2010	3/6/2019	medium

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critical

medium

medium

medium

medium

medium