Several flaws were discovered in the browser engine. These problems could allow an attacker to crash the browser and possibly execute arbitrary code with user privileges. (CVE-2008-5500)

Boris Zbarsky discovered that the same-origin check in Firefox could be bypassed by utilizing XBL-bindings. An attacker could exploit this to read data from other domains. (CVE-2008-5503)

Several problems were discovered in the JavaScript engine. An attacker could exploit feed preview vulnerabilities to execute scripts from page content with chrome privileges. (CVE-2008-5504)

Marius Schilder discovered that Firefox did not properly handle redirects to an outside domain when an XMLHttpRequest was made to a same-origin resource. It's possible that sensitive information could be revealed in the XMLHttpRequest response. (CVE-2008-5506)

Chris Evans discovered that Firefox did not properly protect a user's data when accessing a same-domain JavaScript URL that is redirected to an unparsable JavaScript off-site resource. If a user were tricked into opening a malicious website, an attacker may be able to steal a limited amount of private data. (CVE-2008-5507)

Chip Salzenberg, Justin Schuh, Tom Cross, and Peter William discovered Firefox did not properly parse URLs when processing certain control characters. (CVE-2008-5508)

Kojima Hajime discovered that Firefox did not properly handle an escaped null character. An attacker may be able to exploit this flaw to bypass script sanitization. (CVE-2008-5510)

Several flaws were discovered in the JavaScript engine. If a user were tricked into opening a malicious website, an attacker could exploit this to execute arbitrary JavaScript code within the context of another website or with chrome privileges. (CVE-2008-5511, CVE-2008-5512)

Flaws were discovered in the session-restore feature of Firefox. If a user were tricked into opening a malicious website, an attacker could exploit this to perform cross-site scripting attacks or execute arbitrary JavaScript code with chrome privileges. (CVE-2008-5513).

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.

The Mozilla Firefox browser was updated to version 3.0.5, fixing various security issues and stability problems.

The following security issues were fixed :

MFSA 2008-69 / CVE-2008-5513: Mozilla security researcher moz_bug_r_a4 reported vulnerabilities in the session-restore feature by which content could be injected into an incorrect document storage location, including storage locations for other domains. An attacker could utilize these issues to violate the browser's same-origin policy and perform an XSS attack while SessionStore data is being restored.
moz_bug_r_a4 also reported that one variant could be used by an attacker to run arbitrary JavaScript with chrome privileges.

MFSA 2008-68 / CVE-2008-5512 / CVE-2008-5511: Mozilla security researcher moz_bug_r_a4 reported that an XBL binding, when attached to an unloaded document, can be used to violate the same-origin policy and execute arbitrary JavaScript within the context of a different website. moz_bug_r_a4 also reported two vulnerabilities by which page content can pollute XPCNativeWrappers and run arbitary JavaScript with chrome priviliges. Thunderbird shares the browser engine with Firefox and could be vulnerable if JavaScript were to be enabled in mail. This is not the default setting and we strongly discourage users from running JavaScript in mail. Workaround Disable JavaScript until a version containing these fixes can be installed.

MFSA 2008-67 / CVE-2008-5510: Kojima Hajime reported that unlike literal null characters which were handled correctly, the escaped form '\0' was ignored by the CSS parser and treated as if it was not present in the CSS input string. This issue could potentially be used to bypass script sanitization routines in web applications. The severity of this issue was determined to be low.

MFSA 2008-66 / CVE-2008-5508: Perl developer Chip Salzenberg reported that certain control characters, when placed at the beginning of a URL, would lead to incorrect parsing resulting in a malformed URL being output by the parser. IBM researchers Justin Schuh, Tom Cross, and Peter William also reported a related symptom as part of their research that resulted in MFSA 2008-37. There was no direct security impact from this issue and its effect was limited to the improper rendering of hyperlinks containing specific characters. The severity of this issue was determined to be low.

MFSA 2008-65 / CVE-2008-5507: Google security researcher Chris Evans reported that a website could access a limited amount of data from a different domain by loading a same-domain JavaScript URL which redirects to an off-domain target resource containing data which is not parsable as JavaScript. Upon attempting to load the data as JavaScript a syntax error is generated that can reveal some of the file context via the window.onerror DOM API. This issue could be used by a malicious website to steal private data from users who are authenticated on the redirected website. How much data could be at risk would depend on the format of the data and how the JavaScript parser attempts to interpret it. For most files the amount of data that can be recovered would be limited to the first word or two. Some data files might allow deeper probing with repeated loads. Thunderbird shares the browser engine with Firefox and could be vulnerable if JavaScript were to be enabled in mail. This is not the default setting and we strongly discourage users from running JavaScript in mail.
Workaround Disable JavaScript until a version containing these fixes can be installed.

MFSA 2008-64 / CVE-2008-5506: Marius Schilder of Google Security reported that when a XMLHttpRequest is made to a same-origin resource which 302 redirects to a resource in a different domain, the response from the cross-domain resource is readable by the site issuing the XHR. Cookies marked HttpOnly were not readable, but other potentially sensitive data could be revealed in the XHR response including URL parameters and content in the response body. Thunderbird shares the browser engine with Firefox and could be vulnerable if JavaScript were to be enabled in mail. This is not the default setting and we strongly discourage users from running JavaScript in mail. Workaround Disable JavaScript until a version containing these fixes can be installed.

MFSA 2008-63 / CVE-2008-5505: Security researcher Hish reported that the persist attribute in XUL elements can be used to store cookie-like information on a user's computer which could later be read by a website. This creates a privacy issue for users who have a non-standard cookie preference and wish to prevent sites from setting cookies on their machine. Even with cookies turned off, this issue could be used by a website to write persistent data in a user's browser and track the user across browsing sessions. Additionally, this issue could allow a website to bypass the limits normally placed on cookie size and number.

MFSA 2008-60 / CVE-2008-5502 / CVE-2008-5501 / CVE-2008-5500: Mozilla developers identified and fixed several stability bugs in the browser engine used in Firefox and other Mozilla-based products. Some of these crashes 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. Thunderbird shares the browser engine with Firefox and could be vulnerable if JavaScript were to be enabled in mail. This is not the default setting and we strongly discourage users from running JavaScript in mail. Without further investigation we cannot rule out the possibility that for some of these an attacker might be able to prepare memory for exploitation through some means other than JavaScript such as large images.
Workaround Disable JavaScript until a version containing these fixes can be installed.

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

This update has been rated as having critical security impact by the Red Hat Security Response Team.

Mozilla Firefox is an open source Web browser.

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 as the user running Firefox.
(CVE-2008-5500, CVE-2008-5501, CVE-2008-5502, CVE-2008-5511, CVE-2008-5512, CVE-2008-5513)

Several flaws were found in the way malformed content was processed. A website containing specially crafted content could potentially trick a Firefox user into surrendering sensitive information. (CVE-2008-5506, CVE-2008-5507)

A flaw was found in the way Firefox stored attributes in XML User Interface Language (XUL) elements. A website could use this flaw to track users across browser sessions, even if users did not allow the site to store cookies in the victim's browser. (CVE-2008-5505)

A flaw was found in the way malformed URLs were processed by Firefox.
This flaw could prevent various URL sanitization mechanisms from properly parsing a malicious URL. (CVE-2008-5508)

A flaw was found in Firefox's CSS parser. A malicious web page could inject NULL characters into a CSS input string, possibly bypassing an application's script sanitization routines. (CVE-2008-5510)

For technical details regarding these flaws, please see the Mozilla security advisories for Firefox 3.0.5. You can find a link to the Mozilla advisories in the References section.

Note: after the errata packages are installed, Firefox must be restarted for the update to take effect.

All firefox users should upgrade to these updated packages, which contain backported patches that correct these issues.

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2008-1036 advisory.

    firefox :
    [3.0.5-1.0.1]
    - Added firefox-oracle-default-prefs.js/firefox-oracle-default-bookmarks.html
    - Removed the corresponding files of Red Hat.
    - Added patch oracle-firefox-branding.patch
    - Update firstrun URL in spec file

    [3.0.5-1]
    - Update to Firefox 3.0.5

    nspr:

    [4.7.3-2]
    - Update to NSPR 4.7.3

    nss:

    [3.12.2.0-2]
    - Update to NSS_3_12_2_RC1
    - Use system zlib

    xulrunner:

    [1.9.0.5-1.0.1]
    - Added xulrunner-oracle-default-prefs.js

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.

ID	Name	Product	Family	Published	Updated	Severity
36225	Ubuntu 7.10 : firefox vulnerabilities (USN-690-2)	Nessus	Ubuntu Local Security Checks	4/23/2009	1/19/2021	critical
39885	openSUSE Security Update : MozillaFirefox (MozillaFirefox-381)	Nessus	SuSE Local Security Checks	7/21/2009	1/14/2021	critical
43721	CentOS 4 / 5 : firefox (CESA-2008:1036)	Nessus	CentOS Local Security Checks	1/6/2010	1/4/2021	critical
67777	Oracle Linux 5 : firefox (ELSA-2008-1036)	Nessus	Oracle Linux Local Security Checks	7/12/2013	10/22/2024	medium

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