Double free vulnerability in the getRawDER function for nsIX509Cert in Firefox allows remote attackers to cause a denial of service (hang) and possibly execute arbitrary code via certain Javascript code.

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

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

Mozilla Thunderbird is a standalone mail and newsgroup client. 

Users of Thunderbird are advised to upgrade to this update, which contains Thunderbird version 1.5.0.8 that corrects these issues. 


From Red Hat Security Advisory 2006:0735 :

Several flaws were found in the way Thunderbird processes certain malformed Javascript code.  A malicious HTML mail message could cause the execution of Javascript code in such a way that could cause Thunderbird to crash or execute arbitrary code as the user running Thunderbird.  (CVE-2006-5463, CVE-2006-5747, CVE-2006-5748)

Several flaws were found in the way Thunderbird renders HTML mail messages.  A malicious HTML mail message could cause the mail client to crash or possibly execute arbitrary code as the user running Thunderbird.  (CVE-2006-5464)

A flaw was found in the way Thunderbird verifies RSA signatures.  For RSA keys with exponent 3 it is possible for an attacker to forge a signature that would be incorrectly verified by the NSS library. Thunderbird as shipped trusts several root Certificate Authorities that use exponent 3.  An attacker could have created a carefully crafted SSL certificate which would be incorrectly trusted when their site was visited by a victim.  This flaw was previously thought to be fixed in Thunderbird 1.5.0.7, however Ulrich Kuehn discovered the fix was incomplete (CVE-2006-5462)


From Red Hat Security Advisory 2006:0677 :

Two flaws were found in the way Thunderbird processed certain regular expressions.  A malicious HTML email could cause a crash or possibly execute arbitrary code as the user running Thunderbird.  (CVE-2006-4565, CVE-2006-4566)

A flaw was found in the Thunderbird auto-update verification system.  An attacker who has the ability to spoof a victim's DNS could get Firefox to download and install malicious code.  In order to exploit this issue an attacker would also need to get a victim to previously accept an unverifiable certificate.  (CVE-2006-4567)

A flaw was found in the handling of Javascript timed events.  A malicious HTML email could crash the browser or possibly execute arbitrary code as the user running Thunderbird.  (CVE-2006-4253)

Daniel Bleichenbacher recently described an implementation error in RSA signature verification.  For RSA keys with exponent 3 it is possible for an attacker to forge a signature that which would be incorrectly verified by the NSS library.  (CVE-2006-4340)

A flaw was found in Thunderbird that triggered when a HTML message contained a remote image pointing to a XBL script.  An attacker could have created a carefully crafted message which would execute Javascript if certain actions were performed on the email by the recipient, even if Javascript was disabled.  (CVE-2006-4570)

A number of flaws were found in Thunderbird.  A malicious HTML email could cause a crash or possibly execute arbitrary code as the user running Thunderbird.  (CVE-2006-4571)


From Red Hat Bug Fix Advisory 2006:0624 :

A problem was found in Thunderbird where starting the application from a graphical launcher (such as a menu item) did not work. 


From Red Hat Security Advisory 2006:0611 :

The Mozilla Foundation has discontinued support for the Mozilla Thunderbird 1.0 branch.  This update deprecates the Mozilla Thunderbird 1.0 branch in Red Hat Enterprise Linux 4 in favor of the supported Mozilla Thunderbird 1.5 branch. 

This update also resolves a number of outstanding Thunderbird security issues :

Several flaws were found in the way Thunderbird processed certain javascript actions.  A malicious mail message could execute arbitrary javascript instructions with the permissions of 'chrome', allowing the page to steal sensitive information or install browser malware. (CVE-2006-2776, CVE-2006-2784, CVE-2006-2785, CVE-2006-2787, CVE-2006-3807, CVE-2006-3809)

Several denial of service flaws were found in the way Thunderbird processed certain mail messages.  A malicious web page could crash the browser or possibly execute arbitrary code as the user running Thunderbird.  (CVE-2006-2779, CVE-2006-2780, CVE-2006-3801, CVE-2006-3677, CVE-2006-3113, CVE-2006-3803, CVE-2006-3805, CVE-2006-3806, CVE-2006-3811)

Several flaws were found in the way Thunderbird processed certain javascript actions.  A malicious mail message could conduct a cross-site scripting attack or steal sensitive information (such as cookies owned by other domains).  (CVE-2006-3802, CVE-2006-3810)

A form file upload flaw was found in the way Thunderbird handled javascript input object mutation.  A malicious mail message could upload an arbitrary local file at form submission time without user interaction.  (CVE-2006-2782)

A denial of service flaw was found in the way Thunderbird called the crypto.signText() javascript function.  A malicious mail message could crash the browser if the victim had a client certificate loaded. (CVE-2006-2778)

A flaw was found in the way Thunderbird processed Proxy AutoConfig scripts.  A malicious Proxy AutoConfig server could execute arbitrary javascript instructions with the permissions of 'chrome', allowing the page to steal sensitive information or install client malware. (CVE-2006-3808)

Note: Please note that JavaScript support is disabled by default in Thunderbird.  The above issues are not exploitable with JavaScript disabled. 

Two flaws were found in the way Thunderbird displayed malformed inline vcard attachments.  If a victim viewed an email message containing a carefully crafted vcard it was possible to execute arbitrary code as the user running Thunderbird.  (CVE-2006-2781, CVE-2006-3804)

A cross site scripting flaw was found in the way Thunderbird processed Unicode Byte-order-Mark (BOM) markers in UTF-8 mail messages.  A malicious web page could execute a script within the browser that a web input sanitizer could miss due to a malformed 'script' tag. (CVE-2006-2783)

Two HTTP response smuggling flaws were found in the way Thunderbird processed certain invalid HTTP response headers.  A malicious web site could return specially crafted HTTP response headers which may bypass HTTP proxy restrictions.  (CVE-2006-2786)

A double free flaw was found in the way the nsIX509::getRawDER method was called.  If a victim visited a carefully crafted web page, it was possible to crash Thunderbird.  (CVE-2006-2788)

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

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. 

Users of Firefox are advised to upgrade to these erratum packages, which contain Firefox version 1.5.0.8 that corrects these issues. 


From Red Hat Security Advisory 2006:0733 :

Several flaws were found in the way Firefox processes certain malformed Javascript code.  A malicious web page could cause the execution of Javascript code in such a way that could cause Firefox to crash or execute arbitrary code as the user running Firefox.  (CVE-2006-5463, CVE-2006-5747, CVE-2006-5748)

Several flaws were found in the way Firefox renders web pages.  A malicious web page could cause the browser to crash or possibly execute arbitrary code as the user running Firefox.  (CVE-2006-5464)

A flaw was found in the way Firefox verifies RSA signatures.  For RSA keys with exponent 3 it is possible for an attacker to forge a signature that would be incorrectly verified by the NSS library.  Firefox as shipped trusts several root Certificate Authorities that use exponent 3. An attacker could have created a carefully crafted SSL certificate which be incorrectly trusted when their site was visited by a victim.  This flaw was previously thought to be fixed in Firefox 1.5.0.7, however Ulrich Kuehn discovered the fix was incomplete (CVE-2006-5462)


From Red Hat Security Advisory 2006:0675 :

Two flaws were found in the way Firefox processed certain regular expressions.  A malicious web page could crash the browser or possibly execute arbitrary code as the user running Firefox.  (CVE-2006-4565, CVE-2006-4566)

A number of flaws were found in Firefox.  A malicious web page could crash the browser or possibly execute arbitrary code as the user running Firefox.  (CVE-2006-4571)

A flaw was found in the handling of Javascript timed events.  A malicious web page could crash the browser or possibly execute arbitrary code as the user running Firefox.  (CVE-2006-4253)

Daniel Bleichenbacher recently described an implementation error in RSA signature verification.  For RSA keys with exponent 3 it is possible for an attacker to forge a signature that would be incorrectly verified by the NSS library.  Firefox as shipped trusts several root Certificate Authorities that use exponent 3.  An attacker could have created a carefully crafted SSL certificate which be incorrectly trusted when their site was visited by a victim.  (CVE-2006-4340)

A flaw was found in the Firefox auto-update verification system.  An attacker who has the ability to spoof a victim's DNS could get Firefox to download and install malicious code.  In order to exploit this issue an attacker would also need to get a victim to previously accept an unverifiable certificate.  (CVE-2006-4567)

Firefox did not properly prevent a frame in one domain from injecting content into a sub-frame that belongs to another domain, which facilitates website spoofing and other attacks (CVE-2006-4568)

Firefox did not load manually opened, blocked popups in the right domain context, which could lead to cross-site scripting attacks.  In order to exploit this issue an attacker would need to find a site which would frame their malicious page and convince the user to manually open a blocked popup.  (CVE-2006-4569)


From Red Hat Security Advisory 2006:0610 :

The Mozilla Foundation has discontinued support for the Mozilla Firefox 1.0 branch.  This update deprecates the Mozilla Firefox 1.0 branch in Red Hat Enterprise Linux 4 in favor of the supported Mozilla Firefox 1.5 branch. 

This update also resolves a number of outstanding Firefox security issues :

Several flaws were found in the way Firefox processed certain javascript actions.  A malicious web page could execute arbitrary javascript instructions with the permissions of 'chrome', allowing the page to steal sensitive information or install browser malware.  (CVE-2006-2776, CVE-2006-2784, CVE-2006-2785, CVE-2006-2787, CVE-2006-3807, CVE-2006-3809, CVE-2006-3812)

Several denial of service flaws were found in the way Firefox processed certain web content.  A malicious web page could crash the browser or possibly execute arbitrary code as the user running Firefox. (CVE-2006-2779, CVE-2006-2780, CVE-2006-3801, CVE-2006-3677, CVE-2006-3113, CVE-2006-3803, CVE-2006-3805, CVE-2006-3806, CVE-2006-3811)

A cross-site scripting flaw was found in the way Firefox processed Unicode Byte-Order-Mark (BOM) markers in UTF-8 web pages.  A malicious web page could execute a script within the browser that a web input sanitizer could miss due to a malformed 'script' tag.  (CVE-2006-2783)

Several flaws were found in the way Firefox processed certain javascript actions.  A malicious web page could conduct a cross-site scripting attack or steal sensitive information (such as cookies owned by other domains).  (CVE-2006-3802, CVE-2006-3810)

A form file upload flaw was found in the way Firefox handled javascript input object mutation.  A malicious web page could upload an arbitrary local file at form submission time without user interaction. (CVE-2006-2782)

A denial of service flaw was found in the way Firefox called the crypto.signText() javascript function.  A malicious web page could crash the browser if the victim had a client certificate loaded. (CVE-2006-2778)

Two HTTP response smuggling flaws were found in the way Firefox processed certain invalid HTTP response headers.  A malicious web site could return specially crafted HTTP response headers which may bypass HTTP proxy restrictions.  (CVE-2006-2786)

A flaw was found in the way Firefox processed Proxy AutoConfig scripts. A malicious Proxy AutoConfig server could execute arbitrary javascript instructions with the permissions of 'chrome', allowing the page to steal sensitive information or install browser malware.  (CVE-2006-3808)

A double free flaw was found in the way the nsIX509::getRawDER method was called.  If a victim visited a carefully crafted web page, it was possible to execute arbitrary code as the user running Firefox. (CVE-2006-2788)

Various flaws have been reported that allow an attacker to execute arbitrary code with user privileges by tricking the user into opening a malicious URL. (CVE-2006-2788, CVE-2006-3805, CVE-2006-3806, CVE-2006-3807, CVE-2006-3809, CVE-2006-3811, CVE-2006-4565, CVE-2006-4568, CVE-2006-4571)

A bug was found in the script handler for automatic proxy configuration. A malicious proxy could send scripts which could execute arbitrary code with the user's privileges. (CVE-2006-3808)

The NSS library did not sufficiently check the padding of PKCS #1 v1.5 signatures if the exponent of the public key is 3 (which is widely used for CAs). This could be exploited to forge valid signatures without the need of the secret key. (CVE-2006-4340)

Georgi Guninski discovered that even with JavaScript disabled, a malicous email could still execute JavaScript when the message is viewed, replied to, or forwarded by putting the script in a remote XBL file loaded by the message. (CVE-2006-4570).

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-296-1 fixed several vulnerabilities in Firefox for the Ubuntu 6.06 LTS release. This update provides the corresponding fixes for Ubuntu 5.04 and Ubuntu 5.10.

For reference, these are the details of the original USN :

Jonas Sicking discovered that under some circumstances persisted XUL attributes are associated with the wrong URL. A malicious website could exploit this to execute arbitrary code with the privileges of the user. (MFSA 2006-35, CVE-2006-2775)

Paul Nickerson discovered that content-defined setters on an object prototype were getting called by privileged UI code.
It was demonstrated that this could be exploited to run arbitrary web script with full user privileges (MFSA 2006-37, CVE-2006-2776). A similar attack was discovered by moz_bug_r_a4 that leveraged SelectionObject notifications that were called in privileged context. (MFSA 2006-43, CVE-2006-2777)

Mikolaj Habryn discovered a buffer overflow in the crypto.signText() function. By tricking a user to visit a site with an SSL certificate with specially crafted optional Certificate Authority name arguments, this could potentially be exploited to execute arbitrary code with the user's privileges. (MFSA 2006-38, CVE-2006-2778)

The Mozilla developer team discovered several bugs that lead to crashes with memory corruption. These might be exploitable by malicious websites to execute arbitrary code with the privileges of the user. (MFSA 2006-32, CVE-2006-2779, CVE-2006-2780, CVE-2006-2788)

Chuck McAuley reported that the fix for CVE-2006-1729 (file stealing by changing input type) was not sufficient to prevent all variants of exploitation. (MFSA 2006-41, CVE-2006-2782)

Masatoshi Kimura found a way to bypass web input sanitizers which filter out JavaScript. By inserting 'Unicode Byte-order-Mark (BOM)' characters into the HTML code (e. g.
'<scr[BOM]ipt>'), these filters might not recognize the tags anymore; however, Firefox would still execute them since BOM markers are filtered out before processing the page. (MFSA 2006-42, CVE-2006-2783)

Paul Nickerson noticed that the fix for CVE-2005-0752 (JavaScript privilege escalation on the plugins page) was not sufficient to prevent all variants of exploitation.
(MFSA 2006-36, CVE-2006-2784)

Paul Nickerson demonstrated that if an attacker could convince a user to right-click on a broken image and choose 'View Image' from the context menu then he could get JavaScript to run on a site of the attacker's choosing. This could be used to steal login cookies or other confidential information from the target site. (MFSA 2006-34, CVE-2006-2785)

Kazuho Oku discovered various ways to perform HTTP response smuggling when used with certain proxy servers. Due to different interpretation of nonstandard HTTP headers in Firefox and the proxy server, a malicious website can exploit this to send back two responses to one request. The second response could be used to steal login cookies or other sensitive data from another opened website. (MFSA 2006-33, CVE-2006-2786).

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.

Jonas Sicking discovered that under some circumstances persisted XUL attributes are associated with the wrong URL. A malicious website could exploit this to execute arbitrary code with the privileges of the user. (MFSA 2006-35, CVE-2006-2775)

Paul Nickerson discovered that content-defined setters on an object prototype were getting called by privileged UI code. It was demonstrated that this could be exploited to run arbitrary web script with full user privileges (MFSA 2006-37, CVE-2006-2776). A similar attack was discovered by moz_bug_r_a4 that leveraged SelectionObject notifications that were called in privileged context. (MFSA 2006-43, CVE-2006-2777)

Mikolaj Habryn discovered a buffer overflow in the crypto.signText() function. By tricking a user to visit a site with an SSL certificate with specially crafted optional Certificate Authority name arguments, this could potentially be exploited to execute arbitrary code with the user's privileges. (MFSA 2006-38, CVE-2006-2778)

The Mozilla developer team discovered several bugs that lead to crashes with memory corruption. These might be exploitable by malicious websites to execute arbitrary code with the privileges of the user. (MFSA 2006-32, CVE-2006-2779, CVE-2006-2780, CVE-2006-2788)

Chuck McAuley reported that the fix for CVE-2006-1729 (file stealing by changing input type) was not sufficient to prevent all variants of exploitation. (MFSA 2006-41, CVE-2006-2782)

Masatoshi Kimura found a way to bypass web input sanitizers which filter out JavaScript. By inserting 'Unicode Byte-order-Mark (BOM)' characters into the HTML code (e. g. '<scr[BOM]ipt>'), these filters might not recognize the tags anymore; however, Firefox would still execute them since BOM markers are filtered out before processing the page. (MFSA 2006-42, CVE-2006-2783)

Paul Nickerson noticed that the fix for CVE-2005-0752 (JavaScript privilege escalation on the plugins page) was not sufficient to prevent all variants of exploitation. (MFSA 2006-36, CVE-2006-2784)

Paul Nickerson demonstrated that if an attacker could convince a user to right-click on a broken image and choose 'View Image' from the context menu then he could get JavaScript to run on a site of the attacker's choosing. This could be used to steal login cookies or other confidential information from the target site. (MFSA 2006-34, CVE-2006-2785)

Kazuho Oku discovered various ways to perform HTTP response smuggling when used with certain proxy servers. Due to different interpretation of nonstandard HTTP headers in Firefox and the proxy server, a malicious website can exploit this to send back two responses to one request. The second response could be used to steal login cookies or other sensitive data from another opened website. (MFSA 2006-33, CVE-2006-2786).

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.

A number of security vulnerabilities have been discovered and corrected in the latest Mozilla Firefox program.

Previous updates to Firefox were patch fixes to Firefox 1.0.6 that brought it in sync with 1.0.8 in terms of security fixes. In this update, Mozilla Firefox 1.5.0.6 is being provided which corrects a number of vulnerabilities that were previously unpatched, as well as providing new and enhanced features.

The following CVE names have been corrected with this update:
CVE-2006-2613, CVE-2006-2894, CVE-2006-2775, CVE-2006-2776, CVE-2006-2777, CVE-2006-2778, CVE-2006-2779, CVE-2006-2780, CVE-2006-2782, CVE-2006-2783, CVE-2006-2784, CVE-2006-2785, CVE-2006-2786, CVE-2006-2787, CVE-2006-2788, CVE-2006-3677, CVE-2006-3803, CVE-2006-3804, CVE-2006-3806, CVE-2006-3807, CVE-2006-3113, CVE-2006-3801, CVE-2006-3802, CVE-2006-3805, CVE-2006-3808, CVE-2006-3809, CVE-2006-3810, CVE-2006-3811, CVE-2006-3812.

Update :

The previous language packages were not correctly tagged for the new Firefox which resulted in many of them not loading properly. These updated language packages correct the problem.

Several security related problems have been discovered in Mozilla and derived products such as Mozilla Firefox. The Common Vulnerabilities and Exposures project identifies the following vulnerabilities :

  - CVE-2006-2788     Fernando Ribeiro discovered that a vulnerability in the     getRawDER function allows remote attackers to cause a     denial of service (hang) and possibly execute arbitrary     code.

  - CVE-2006-4340     Daniel Bleichenbacher recently described an     implementation error in RSA signature verification that     cause the application to incorrectly trust SSL     certificates.

  - CVE-2006-4565, CVE-2006-4566     Priit Laes reported that a JavaScript regular expression     can trigger a heap-based buffer overflow which allows     remote attackers to cause a denial of service and     possibly execute arbitrary code.

  - CVE-2006-4568     A vulnerability has been discovered that allows remote     attackers to bypass the security model and inject     content into the sub-frame of another site.

  - CVE-2006-4571     Multiple unspecified vulnerabilities in Firefox,     Thunderbird and SeaMonkey allow remote attackers to     cause a denial of service, corrupt memory, and possibly     execute arbitrary code.

Several security related problems have been discovered in Mozilla and derived products such as Mozilla Thunderbird. The Common Vulnerabilities and Exposures project identifies the following vulnerabilities :

  - CVE-2006-2788     Fernando Ribeiro discovered that a vulnerability in the     getRawDER function allows remote attackers to cause a     denial of service (hang) and possibly execute arbitrary     code.

  - CVE-2006-4340     Daniel Bleichenbacher recently described an     implementation error in RSA signature verification that     cause the application to incorrectly trust SSL     certificates.

  - CVE-2006-4565, CVE-2006-4566     Priit Laes reported that a JavaScript regular expression     can trigger a heap-based buffer overflow which allows     remote attackers to cause a denial of service and     possibly execute arbitrary code.

  - CVE-2006-4568     A vulnerability has been discovered that allows remote     attackers to bypass the security model and inject     content into the sub-frame of another site.

  - CVE-2006-4570     Georgi Guninski demonstrated that even with JavaScript     disabled in mail (the default) an attacker can still     execute JavaScript when a mail message is viewed,     replied to, or forwarded.

  - CVE-2006-4571     Multiple unspecified vulnerabilities in Firefox,     Thunderbird and SeaMonkey allow remote attackers to     cause a denial of service, corrupt memory, and possibly     execute arbitrary code.

The remote Windows host contains a mail client that is affected by multiple vulnerabilities.  The remote version of Mozilla Thunderbird has various security issues, at least one of which may lead to execution of arbitrary code on the affected host subject to the user's privileges.

The installed version of SeaMonkey has various security issues, some of which may lead to execution of arbitrary code on the affected host subject to the user's privileges.

Versions of Mozilla Firefox 1.5.x prior to 1.5.0.7 are affected by multiple security issues, some of which may lead to execution of arbitrary code on the affected host subject to the user's privileges.

Updated SeaMonkey packages that fix several security bugs in the mozilla packages are now available for Red Hat Enterprise Linux 2.1.

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

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

The Mozilla Foundation has discontinued support for the Mozilla Suite.
This update deprecates the Mozilla Suite in Red Hat Enterprise Linux 2.1 in favor of the supported SeaMonkey Suite.

This update also resolves a number of outstanding Mozilla security issues :

Several flaws were found in the way SeaMonkey processed certain JavaScript actions. A malicious web page could execute arbitrary JavaScript instructions with the permissions of 'chrome', allowing the page to steal sensitive information or install browser malware.
(CVE-2006-2776, CVE-2006-2784, CVE-2006-2785, CVE-2006-2787, CVE-2006-3807, CVE-2006-3809, CVE-2006-3812)

Several denial of service flaws were found in the way SeaMonkey processed certain web content. A malicious web page could crash the browser or possibly execute arbitrary code as the user running SeaMonkey. (CVE-2006-2779, CVE-2006-2780, CVE-2006-3801, CVE-2006-3677, CVE-2006-3113, CVE-2006-3803, CVE-2006-3805, CVE-2006-3806, CVE-2006-3811)

Two flaws were found in the way SeaMonkey Messenger displayed malformed inline vcard attachments. If a victim viewed an email message containing a carefully crafted vcard it was possible to execute arbitrary code as the user running SeaMonkey Messenger.
(CVE-2006-2781, CVE-2006-3804)

A cross-site scripting flaw was found in the way SeaMonkey processed Unicode Byte-Order-Mark (BOM) markers in UTF-8 web pages. A malicious web page could execute a script within the browser that a web input sanitizer could miss due to a malformed 'script' tag. (CVE-2006-2783)

Several flaws were found in the way SeaMonkey processed certain JavaScript actions. A malicious web page could conduct a cross-site scripting attack or steal sensitive information (such as cookies owned by other domains). (CVE-2006-3802, CVE-2006-3810)

A form file upload flaw was found in the way SeaMonkey handled JavaScript input object mutation. A malicious web page could upload an arbitrary local file at form submission time without user interaction.
(CVE-2006-2782)

A denial of service flaw was found in the way SeaMonkey called the crypto.signText() JavaScript function. A malicious web page could crash the browser if the victim had a client certificate loaded.
(CVE-2006-2778)

Two HTTP response smuggling flaws were found in the way SeaMonkey processed certain invalid HTTP response headers. A malicious website could return specially crafted HTTP response headers which may bypass HTTP proxy restrictions. (CVE-2006-2786)

A flaw was found in the way SeaMonkey processed Proxy AutoConfig scripts. A malicious Proxy AutoConfig server could execute arbitrary JavaScript instructions with the permissions of 'chrome', allowing the page to steal sensitive information or install browser malware.
(CVE-2006-3808)

A double free flaw was found in the way the nsIX509::getRawDER method was called. If a victim visited a carefully crafted web page it was possible to execute arbitrary code as the user running SeaMonkey.
(CVE-2006-2788)

Users of Mozilla are advised to upgrade to this update, which contains SeaMonkey version 1.0.3 that corrects these issues.

Updated SeaMonkey packages that fix several security bugs in the mozilla package are now available for Red Hat Enterprise Linux 4.

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

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

The Mozilla Foundation has discontinued support for the Mozilla Suite.
This update deprecates the Mozilla Suite in Red Hat Enterprise Linux 4 in favor of the supported SeaMonkey Suite.

This update also resolves a number of outstanding Mozilla security issues :

Several flaws were found in the way SeaMonkey processed certain JavaScript actions. A malicious web page could execute arbitrary JavaScript instructions with the permissions of 'chrome', allowing the page to steal sensitive information or install browser malware.
(CVE-2006-2776, CVE-2006-2784, CVE-2006-2785, CVE-2006-2787, CVE-2006-3807, CVE-2006-3809, CVE-2006-3812)

Several denial of service flaws were found in the way SeaMonkey processed certain web content. A malicious web page could crash the browser or possibly execute arbitrary code as the user running SeaMonkey. (CVE-2006-2779, CVE-2006-2780, CVE-2006-3801, CVE-2006-3677, CVE-2006-3113, CVE-2006-3803, CVE-2006-3805, CVE-2006-3806, CVE-2006-3811)

Two flaws were found in the way SeaMonkey-mail displayed malformed inline vcard attachments. If a victim viewed an email message containing a carefully crafted vcard it was possible to execute arbitrary code as the user running Mozilla-mail. (CVE-2006-2781, CVE-2006-3804)

A cross-site scripting flaw was found in the way SeaMonkey processed Unicode Byte-Order-Mark (BOM) markers in UTF-8 web pages. A malicious web page could execute a script within the browser that a web input sanitizer could miss due to a malformed 'script' tag. (CVE-2006-2783)

Several flaws were found in the way SeaMonkey processed certain JavaScript actions. A malicious web page could conduct a cross-site scripting attack or steal sensitive information (such as cookies owned by other domains). (CVE-2006-3802, CVE-2006-3810)

A form file upload flaw was found in the way SeaMonkey handled JavaScript input object mutation. A malicious web page could upload an arbitrary local file at form submission time without user interaction.
(CVE-2006-2782)

A denial of service flaw was found in the way SeaMonkey called the crypto.signText() JavaScript function. A malicious web page could crash the browser if the victim had a client certificate loaded.
(CVE-2006-2778)

Two HTTP response smuggling flaws were found in the way SeaMonkey processed certain invalid HTTP response headers. A malicious website could return specially crafted HTTP response headers which may bypass HTTP proxy restrictions. (CVE-2006-2786)

A flaw was found in the way SeaMonkey processed Proxy AutoConfig scripts. A malicious Proxy AutoConfig server could execute arbitrary JavaScript instructions with the permissions of 'chrome', allowing the page to steal sensitive information or install browser malware.
(CVE-2006-3808)

A double free flaw was found in the way the nsIX509::getRawDER method was called. If a victim visited a carefully crafted web page, it was possible to execute arbitrary code as the user running Mozilla.
(CVE-2006-2788)

Users of Mozilla are advised to upgrade to this update, which contains SeaMonkey version 1.0.3 that corrects these issues.

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

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

Mozilla Thunderbird is a standalone mail and newsgroup client.

The Mozilla Foundation has discontinued support for the Mozilla Thunderbird 1.0 branch. This update deprecates the Mozilla Thunderbird 1.0 branch in Red Hat Enterprise Linux 4 in favor of the supported Mozilla Thunderbird 1.5 branch.

This update also resolves a number of outstanding Thunderbird security issues :

Several flaws were found in the way Thunderbird processed certain JavaScript actions. A malicious mail message could execute arbitrary JavaScript instructions with the permissions of 'chrome', allowing the page to steal sensitive information or install browser malware.
(CVE-2006-2776, CVE-2006-2784, CVE-2006-2785, CVE-2006-2787, CVE-2006-3807, CVE-2006-3809)

Several denial of service flaws were found in the way Thunderbird processed certain mail messages. A malicious web page could crash the browser or possibly execute arbitrary code as the user running Thunderbird. (CVE-2006-2779, CVE-2006-2780, CVE-2006-3801, CVE-2006-3677, CVE-2006-3113, CVE-2006-3803, CVE-2006-3805, CVE-2006-3806, CVE-2006-3811)

Several flaws were found in the way Thunderbird processed certain JavaScript actions. A malicious mail message could conduct a cross-site scripting attack or steal sensitive information (such as cookies owned by other domains). (CVE-2006-3802, CVE-2006-3810)

A form file upload flaw was found in the way Thunderbird handled JavaScript input object mutation. A malicious mail message could upload an arbitrary local file at form submission time without user interaction. (CVE-2006-2782)

A denial of service flaw was found in the way Thunderbird called the crypto.signText() JavaScript function. A malicious mail message could crash the browser if the victim had a client certificate loaded.
(CVE-2006-2778)

A flaw was found in the way Thunderbird processed Proxy AutoConfig scripts. A malicious Proxy AutoConfig server could execute arbitrary JavaScript instructions with the permissions of 'chrome', allowing the page to steal sensitive information or install client malware.
(CVE-2006-3808)

Note: Please note that JavaScript support is disabled by default in Thunderbird. The above issues are not exploitable with JavaScript disabled.

Two flaws were found in the way Thunderbird displayed malformed inline vcard attachments. If a victim viewed an email message containing a carefully crafted vcard it was possible to execute arbitrary code as the user running Thunderbird. (CVE-2006-2781, CVE-2006-3804)

A cross site scripting flaw was found in the way Thunderbird processed Unicode Byte-order-Mark (BOM) markers in UTF-8 mail messages. A malicious web page could execute a script within the browser that a web input sanitizer could miss due to a malformed 'script' tag.
(CVE-2006-2783)

Two HTTP response smuggling flaws were found in the way Thunderbird processed certain invalid HTTP response headers. A malicious website could return specially crafted HTTP response headers which may bypass HTTP proxy restrictions. (CVE-2006-2786)

A double free flaw was found in the way the nsIX509::getRawDER method was called. If a victim visited a carefully crafted web page, it was possible to crash Thunderbird. (CVE-2006-2788)

Users of Thunderbird are advised to upgrade to this update, which contains Thunderbird version 1.5.0.5 that corrects these issues.

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

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.

The Mozilla Foundation has discontinued support for the Mozilla Firefox 1.0 branch. This update deprecates the Mozilla Firefox 1.0 branch in Red Hat Enterprise Linux 4 in favor of the supported Mozilla Firefox 1.5 branch.

This update also resolves a number of outstanding Firefox security issues :

Several flaws were found in the way Firefox processed certain JavaScript actions. A malicious web page could execute arbitrary JavaScript instructions with the permissions of 'chrome', allowing the page to steal sensitive information or install browser malware.
(CVE-2006-2776, CVE-2006-2784, CVE-2006-2785, CVE-2006-2787, CVE-2006-3807, CVE-2006-3809, CVE-2006-3812)

Several denial of service flaws were found in the way Firefox processed certain web content. A malicious web page could crash the browser or possibly execute arbitrary code as the user running Firefox. (CVE-2006-2779, CVE-2006-2780, CVE-2006-3801, CVE-2006-3677, CVE-2006-3113, CVE-2006-3803, CVE-2006-3805, CVE-2006-3806, CVE-2006-3811)

A cross-site scripting flaw was found in the way Firefox processed Unicode Byte-Order-Mark (BOM) markers in UTF-8 web pages. A malicious web page could execute a script within the browser that a web input sanitizer could miss due to a malformed 'script' tag. (CVE-2006-2783)

Several flaws were found in the way Firefox processed certain JavaScript actions. A malicious web page could conduct a cross-site scripting attack or steal sensitive information (such as cookies owned by other domains). (CVE-2006-3802, CVE-2006-3810)

A form file upload flaw was found in the way Firefox handled JavaScript input object mutation. A malicious web page could upload an arbitrary local file at form submission time without user interaction.
(CVE-2006-2782)

A denial of service flaw was found in the way Firefox called the crypto.signText() JavaScript function. A malicious web page could crash the browser if the victim had a client certificate loaded.
(CVE-2006-2778)

Two HTTP response smuggling flaws were found in the way Firefox processed certain invalid HTTP response headers. A malicious website could return specially crafted HTTP response headers which may bypass HTTP proxy restrictions. (CVE-2006-2786)

A flaw was found in the way Firefox processed Proxy AutoConfig scripts. A malicious Proxy AutoConfig server could execute arbitrary JavaScript instructions with the permissions of 'chrome', allowing the page to steal sensitive information or install browser malware.
(CVE-2006-3808)

A double free flaw was found in the way the nsIX509::getRawDER method was called. If a victim visited a carefully crafted web page, it was possible to execute arbitrary code as the user running Firefox.
(CVE-2006-2788)

Users of Firefox are advised to upgrade to this update, which contains Firefox version 1.5.0.5 that corrects these issues.

The remote Redhat Enterprise Linux 4 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2006:0610 advisory.

    Mozilla Firefox is an open source Web browser.

    The Mozilla Foundation has discontinued support for the Mozilla Firefox     1.0 branch. This update deprecates the Mozilla Firefox 1.0 branch in     Red Hat Enterprise Linux 4 in favor of the supported Mozilla Firefox     1.5 branch.

    This update also resolves a number of outstanding Firefox security issues:

    Several flaws were found in the way Firefox processed certain javascript     actions. A malicious web page could execute arbitrary javascript     instructions with the permissions of chrome, allowing the page to steal     sensitive information or install browser malware. (CVE-2006-2776,     CVE-2006-2784, CVE-2006-2785, CVE-2006-2787, CVE-2006-3807, CVE-2006-3809,     CVE-2006-3812)

    Several denial of service flaws were found in the way Firefox processed     certain web content. A malicious web page could crash the browser or     possibly execute arbitrary code as the user running Firefox.
    (CVE-2006-2779, CVE-2006-2780, CVE-2006-3801, CVE-2006-3677, CVE-2006-3113,     CVE-2006-3803, CVE-2006-3805, CVE-2006-3806, CVE-2006-3811)

    A cross-site scripting flaw was found in the way Firefox processed     Unicode Byte-Order-Mark (BOM) markers in UTF-8 web pages. A malicious web     page could execute a script within the browser that a web input sanitizer     could miss due to a malformed script tag. (CVE-2006-2783)

    Several flaws were found in the way Firefox processed certain javascript     actions. A malicious web page could conduct a cross-site scripting attack     or steal sensitive information (such as cookies owned by other domains).
    (CVE-2006-3802, CVE-2006-3810)

    A form file upload flaw was found in the way Firefox handled javascript     input object mutation. A malicious web page could upload an arbitrary local     file at form submission time without user interaction. (CVE-2006-2782)

    A denial of service flaw was found in the way Firefox called the     crypto.signText() javascript function. A malicious web page could crash the     browser if the victim had a client certificate loaded. (CVE-2006-2778)

    Two HTTP response smuggling flaws were found in the way Firefox processed     certain invalid HTTP response headers. A malicious web site could return     specially crafted HTTP response headers which may bypass HTTP proxy     restrictions. (CVE-2006-2786)

    A flaw was found in the way Firefox processed Proxy AutoConfig scripts. A     malicious Proxy AutoConfig server could execute arbitrary javascript     instructions with the permissions of chrome, allowing the page to steal     sensitive information or install browser malware. (CVE-2006-3808)

    A double free flaw was found in the way the nsIX509::getRawDER method was     called. If a victim visited a carefully crafted web page, it was possible     to execute arbitrary code as the user running Firefox. (CVE-2006-2788)

    Users of Firefox are advised to upgrade to this update, which contains     Firefox version 1.5.0.5 that corrects these issues.

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.

Updated SeaMonkey packages that fix several security bugs in the mozilla package are now available for Red Hat Enterprise Linux 3.

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

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

The Mozilla Foundation has discontinued support for the Mozilla Suite.
This update deprecates the Mozilla Suite in Red Hat Enterprise Linux 3 in favor of the supported SeaMonkey Suite.

This update also resolves a number of outstanding Mozilla security issues :

Several flaws were found in the way Mozilla processed certain JavaScript actions. A malicious web page could execute arbitrary JavaScript instructions with the permissions of 'chrome', allowing the page to steal sensitive information or install browser malware.
(CVE-2006-2776, CVE-2006-2784, CVE-2006-2785, CVE-2006-2787)

Several denial of service flaws were found in the way Mozilla processed certain web content. A malicious web page could crash firefox or possibly execute arbitrary code. These issues to date were not proven to be exploitable, but do show evidence of memory corruption. (CVE-2006-2779, CVE-2006-2780)

A double-free flaw was found in the way Mozilla-mail displayed malformed inline vcard attachments. If a victim viewed an email message containing a carefully crafted vcard it could execute arbitrary code as the user running Mozilla-mail. (CVE-2006-2781)

A cross site scripting flaw was found in the way Mozilla processed Unicode Byte-order-Mark (BOM) markers in UTF-8 web pages. A malicious web page could execute a script within the browser that a web input sanitizer could miss due to a malformed 'script' tag. (CVE-2006-2783)

A form file upload flaw was found in the way Mozilla handled JavaScript input object mutation. A malicious web page could upload an arbitrary local file at form submission time without user interaction.
(CVE-2006-2782)

A denial of service flaw was found in the way Mozilla called the crypto.signText() JavaScript function. A malicious web page could crash the browser if the victim had a client certificate loaded.
(CVE-2006-2778)

Two HTTP response smuggling flaws were found in the way Mozilla processed certain invalid HTTP response headers. A malicious website could return specially crafted HTTP response headers which may bypass HTTP proxy restrictions. (CVE-2006-2786)

A double free flaw was found in the way the nsIX509::getRawDER method was called. If a victim visited a carefully crafted web page it could execute arbitrary code as the user running Mozilla. (CVE-2006-2788)

Users of Mozilla are advised to upgrade to this update, which contains SeaMonkey version 1.0.2 that is not vulnerable to these issues.

The installed version of Firefox is affected by multiple security issues, some of which may lead to execution of arbitrary code on the affected host subject to the user's privileges.

ID	Name	Product	Family	Severity
67424	Oracle Linux 4 : thunderbird (ELSA-2006-0735 / ELSA-2006-0677 / ELBA-2006-0624 / ELSA-2006-0611)	Nessus	Oracle Linux Local Security Checks	critical
67422	Oracle Linux 4 : firefox (ELSA-2006-0733 / ELSA-2006-0675 / ELSA-2006-0610)	Nessus	Oracle Linux Local Security Checks	critical
27941	Ubuntu 5.04 / 5.10 : mozilla vulnerabilities (USN-361-1)	Nessus	Ubuntu Local Security Checks	critical
27869	Ubuntu 5.04 / 5.10 : firefox, mozilla-firefox vulnerabilities (USN-296-2)	Nessus	Ubuntu Local Security Checks	high
27868	Ubuntu 6.06 LTS : firefox vulnerabilities (USN-296-1)	Nessus	Ubuntu Local Security Checks	high
23892	Mandrake Linux Security Advisory : mozilla-firefox (MDKSA-2006:143-1)	Nessus	Mandriva Local Security Checks	critical
23659	Debian DSA-1210-1 : mozilla-firefox - several vulnerabilities	Nessus	Debian Local Security Checks	critical
22733	Debian DSA-1192-1 : mozilla - several vulnerabilities	Nessus	Debian Local Security Checks	critical
22732	Debian DSA-1191-1 : mozilla-thunderbird - several vulnerabilities	Nessus	Debian Local Security Checks	critical
3745	Mozilla Thunderbird < 1.5.0.7 Multiple Vulnerabilities (deprecated)	Nessus Network Monitor	SMTP Clients	medium
3744	SeaMonkey < 1.0.5 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	medium
3743	Mozilla Firefox 1.5.x < 1.5.0.7 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	medium
22291	RHEL 2.1 : seamonkey (RHSA-2006:0594)	Nessus	Red Hat Local Security Checks	high
22163	CentOS 4 : seamonkey (CESA-2006:0609)	Nessus	CentOS Local Security Checks	high
22150	RHEL 4 : seamonkey (RHSA-2006:0609)	Nessus	Red Hat Local Security Checks	high
22138	CentOS 4 : thunderbird (CESA-2006:0611)	Nessus	CentOS Local Security Checks	high
22137	CentOS 4 : Firefox (CESA-2006:0610)	Nessus	CentOS Local Security Checks	high
22122	RHEL 4 : thunderbird (RHSA-2006:0611)	Nessus	Red Hat Local Security Checks	high
22121	RHEL 4 : firefox (RHSA-2006:0610)	Nessus	Red Hat Local Security Checks	medium
22088	RHEL 3 : seamonkey (RHSA-2006:0578)	Nessus	Red Hat Local Security Checks	high
801305	Mozilla Thunderbird < 1.5.0.7 Multiple Vulnerabilities	Log Correlation Engine	SMTP Clients	high
800868	SeaMonkey < 1.0.5 Multiple Vulnerabilities	Log Correlation Engine	Web Clients	high
800764	Firefox < 1.5.0.7 Multiple Vulnerabilities	Log Correlation Engine	Web Clients	high

Detections

Analytics

CVE-2006-2788

high

Tenable Plugins

critical

critical

critical

high

high

critical

critical

critical

critical

medium

medium

medium

high

high

high

high

high

high

medium

high

high

high

high