Mozilla Firefox before 3.6 Beta 3 does not properly handle overlong UTF-8 encoding, which makes it easier for remote attackers to bypass cross-site scripting (XSS) protection mechanisms via a crafted string, a different vulnerability than CVE-2010-1210.

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2010-0501 advisory.

    devhelp:

    [0.12-21]
    - Rebuild against xulrunner

    esc:

    [1.1.0-12]
    - Rebuild for xulrunner update

    firefox:

    [3.6.4-8.0.1.el5]
    - Add firefox-oracle-default-prefs.js and firefox-oracle-default-bookmarks.html       and remove the corresponding Red Hat ones

    [3.6.4-8]
    - Fixing NVR

    [3.6.4-7]
    - Update to 3.6.4 build7
    - Disable checking for updates since they can't be applied

    [3.6.4-6]
    - Update to 3.6.4 build6

    [3.6.4-5]
    - Update to 3.6.4 build5

    [3.6.4-4]
    - Update to 3.6.4 build4

    [3.6.4-3]
    - Update to 3.6.4 build 3

    [3.6.4-2]
    - Update to 3.6.4 build 2

    [3.6.4-1]
    - Update to 3.6.4

    [3.6.3-3]
    - Fixed language packs (#581392)

    [3.6.3-2]
    - Fixed multilib conflict

    [3.6.3-1]
    - Rebase to 3.6.3

    gnome-python2-extras:

    [2.14.2-7]
    - rebuild agains xulrunner

    totem:

    [2.16.7-7]
    - rebuild against new xulrunner

    xulrunner:

    [1.9.2.4-9.0.1]
    - Added xulrunner-oracle-default-prefs.js and removed the corresponding       RedHat one.

    [1.9.2.4-9]
    - Update to 1.9.2.4 build 7

    [1.9.2.4-8]
    - Update to 1.9.2.4 build 6

    [1.9.2.4-7]
    - Update to 1.9.2.4 build 5

    [1.9.2.4-6]
    - Update to 1.9.2.4 build 4
    - Fixed mozbz#546270 patch

    [1.9.2.4-5]
    - Update to 1.9.2.4 build 3

    [1.9.2.4-4]
    - Update to 1.9.2.4 build 2
    - Enabled oopp

    [1.9.2.4-3]
    - Disabled libnotify

    [1.9.2.4-2]
    - Disabled oopp, causes TEXTREL

    [1.9.2.4-1]
    - Update to 1.9.2.4

    [1.9.2.3-3]
    - fixed js-config.h multilib conflict
    - fixed file list

    [1.9.2.3-2]
    - Added fix for rhbz#555760 -  Firefox Javascript anomily,       landscape print orientation reverts to portrait (mozbz#546270)

    [1.9.2.3-1]
    - Update to 1.9.2.3

    [1.9.2.2-1]
    - Rebase to 1.9.2.2

    yelp:

    [2.16.0-26]
    - rebuild against xulrunner

    [2.16.0-25]
    - rebuild against xulrunner
    - added xulrunner fix
    - added -fno-strict-aliasing to build flags

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.

From Red Hat Security Advisory 2010:0500 :

An updated firefox package that addresses security issues, fixes bugs, adds numerous enhancements, and upgrades Firefox to version 3.6.4, is 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.

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 with the privileges of the user running Firefox. (CVE-2010-1121, CVE-2010-1200, CVE-2010-1202, CVE-2010-1203)

A flaw was found in the way browser plug-ins interact. It was possible for a plug-in to reference the freed memory from a different plug-in, resulting in the execution of arbitrary code with the privileges of the user running Firefox. (CVE-2010-1198)

Several integer overflow 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-2010-1196, CVE-2010-1199)

A focus stealing flaw was found in the way Firefox handled focus changes. A malicious website could use this flaw to steal sensitive data from a user, such as usernames and passwords. (CVE-2010-1125)

A flaw was found in the way Firefox handled the 'Content-Disposition:
attachment' HTTP header when the 'Content-Type: multipart' HTTP header was also present. A website that allows arbitrary uploads and relies on the 'Content-Disposition: attachment' HTTP header to prevent content from being displayed inline, could be used by an attacker to serve malicious content to users. (CVE-2010-1197)

A flaw was found in the Firefox Math.random() function. This function could be used to identify a browsing session and track a user across different websites. (CVE-2008-5913)

A flaw was found in the Firefox XML document loading security checks.
Certain security checks were not being called when an XML document was loaded. This could possibly be leveraged later by an attacker to load certain resources that violate the security policies of the browser or its add-ons. Note that this issue cannot be exploited by only loading an XML document. (CVE-2010-0182)

For technical details regarding these flaws, refer to the Mozilla security advisories for Firefox 3.6.4. You can find a link to the Mozilla advisories in the References section of this erratum.

This erratum upgrades Firefox from version 3.0.19 to version 3.6.4, and as such, contains multiple bug fixes and numerous enhancements.
Space precludes documenting these changes in this advisory. For details concerning these changes, refer to the Firefox Release Notes links in the References section of this erratum.

Important: Firefox 3.6.4 is not completely backwards-compatible with all Mozilla Add-ons and Firefox plug-ins that worked with Firefox 3.0.19. Firefox 3.6 checks compatibility on first-launch, and, depending on the individual configuration and the installed Add-ons and plug-ins, may disable said Add-ons and plug-ins, or attempt to check for updates and upgrade them. Add-ons and plug-ins may have to be manually updated.

All Firefox users should upgrade to this updated package, which contains Firefox version 3.6.4. After installing the update, Firefox must be restarted for the changes to take effect.

An updated firefox package that addresses security issues, fixes bugs, adds numerous enhancements, and upgrades Firefox to version 3.6.4, is 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.

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 with the privileges of the user running Firefox. (CVE-2010-1121, CVE-2010-1200, CVE-2010-1202, CVE-2010-1203)

A flaw was found in the way browser plug-ins interact. It was possible for a plug-in to reference the freed memory from a different plug-in, resulting in the execution of arbitrary code with the privileges of the user running Firefox. (CVE-2010-1198)

Several integer overflow 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-2010-1196, CVE-2010-1199)

A focus stealing flaw was found in the way Firefox handled focus changes. A malicious website could use this flaw to steal sensitive data from a user, such as usernames and passwords. (CVE-2010-1125)

A flaw was found in the way Firefox handled the 'Content-Disposition:
attachment' HTTP header when the 'Content-Type: multipart' HTTP header was also present. A website that allows arbitrary uploads and relies on the 'Content-Disposition: attachment' HTTP header to prevent content from being displayed inline, could be used by an attacker to serve malicious content to users. (CVE-2010-1197)

A flaw was found in the Firefox Math.random() function. This function could be used to identify a browsing session and track a user across different websites. (CVE-2008-5913)

A flaw was found in the Firefox XML document loading security checks.
Certain security checks were not being called when an XML document was loaded. This could possibly be leveraged later by an attacker to load certain resources that violate the security policies of the browser or its add-ons. Note that this issue cannot be exploited by only loading an XML document. (CVE-2010-0182)

For technical details regarding these flaws, refer to the Mozilla security advisories for Firefox 3.6.4. You can find a link to the Mozilla advisories in the References section of this erratum.

This erratum upgrades Firefox from version 3.0.19 to version 3.6.4, and as such, contains multiple bug fixes and numerous enhancements.
Space precludes documenting these changes in this advisory. For details concerning these changes, refer to the Firefox Release Notes links in the References section of this erratum.

Important: Firefox 3.6.4 is not completely backwards-compatible with all Mozilla Add-ons and Firefox plug-ins that worked with Firefox 3.0.19. Firefox 3.6 checks compatibility on first-launch, and, depending on the individual configuration and the installed Add-ons and plug-ins, may disable said Add-ons and plug-ins, or attempt to check for updates and upgrade them. Add-ons and plug-ins may have to be manually updated.

All Firefox users should upgrade to this updated package, which contains Firefox version 3.6.4. After installing the update, Firefox must be restarted for the changes to take effect.

Updated firefox packages that address several security issues, fix bugs, add numerous enhancements, and upgrade Firefox to version 3.6.4, are now available for Red Hat Enterprise Linux 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.

[Updated 25 June 2010] The original packages distributed with this erratum had a bug which could cause unintended dependencies to be installed when upgrading. We have updated the packages to correct this bug.

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 with the privileges of the user running Firefox. (CVE-2010-1121, CVE-2010-1200, CVE-2010-1202, CVE-2010-1203)

A flaw was found in the way browser plug-ins interact. It was possible for a plug-in to reference the freed memory from a different plug-in, resulting in the execution of arbitrary code with the privileges of the user running Firefox. (CVE-2010-1198)

Several integer overflow 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-2010-1196, CVE-2010-1199)

A focus stealing flaw was found in the way Firefox handled focus changes. A malicious website could use this flaw to steal sensitive data from a user, such as usernames and passwords. (CVE-2010-1125)

A flaw was found in the way Firefox handled the 'Content-Disposition:
attachment' HTTP header when the 'Content-Type: multipart' HTTP header was also present. A website that allows arbitrary uploads and relies on the 'Content-Disposition: attachment' HTTP header to prevent content from being displayed inline, could be used by an attacker to serve malicious content to users. (CVE-2010-1197)

A flaw was found in the Firefox Math.random() function. This function could be used to identify a browsing session and track a user across different websites. (CVE-2008-5913)

A flaw was found in the Firefox XML document loading security checks.
Certain security checks were not being called when an XML document was loaded. This could possibly be leveraged later by an attacker to load certain resources that violate the security policies of the browser or its add-ons. Note that this issue cannot be exploited by only loading an XML document. (CVE-2010-0182)

For technical details regarding these flaws, refer to the Mozilla security advisories for Firefox 3.6.4. You can find a link to the Mozilla advisories in the References section of this erratum.

This erratum upgrades Firefox from version 3.0.19 to version 3.6.4.
Due to the requirements of Firefox 3.6.4, this erratum also provides a number of other updated packages, including esc, totem, and yelp.

This erratum also contains multiple bug fixes and numerous enhancements. Space precludes documenting these changes in this advisory. For details concerning these changes, refer to the Firefox Release Notes links in the References section of this erratum.

Important: Firefox 3.6.4 is not completely backwards-compatible with all Mozilla Add-ons and Firefox plug-ins that worked with Firefox 3.0.19. Firefox 3.6 checks compatibility on first-launch, and, depending on the individual configuration and the installed Add-ons and plug-ins, may disable said Add-ons and plug-ins, or attempt to check for updates and upgrade them. Add-ons and plug-ins may have to be manually updated.

All Firefox users should upgrade to these updated packages, which contain Firefox version 3.6.4. After installing the update, Firefox must be restarted for the changes to take effect.

ID	Name	Product	Family	Severity
68055	Oracle Linux 5 : firefox (ELSA-2010-0501)	Nessus	Oracle Linux Local Security Checks	medium
68054	Oracle Linux 4 : firefox (ELSA-2010-0500)	Nessus	Oracle Linux Local Security Checks	critical
48265	CentOS 4 : firefox (CESA-2010:0500)	Nessus	CentOS Local Security Checks	critical
47129	CentOS 5 : firefox (CESA-2010:0501)	Nessus	CentOS Local Security Checks	critical
47119	RHEL 5 : firefox (RHSA-2010:0501)	Nessus	Red Hat Local Security Checks	critical
47118	RHEL 4 : firefox (RHSA-2010:0500)	Nessus	Red Hat Local Security Checks	critical

Detections

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CVE-2009-5017

medium

Tenable Plugins

medium

critical

critical

critical

critical

critical