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).

Mikolaj Habryn discovered a buffer overflow in the crypto.signText() function. By sending an email with malicious JavaScript to an user, and that user enabled JavaScript in Thunderbird (which is not the default and not recommended), 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)

Masatoshi Kimura discovered a memory corruption (double-free) when processing a large VCard with invalid base64 characters in it. By sending a maliciously crafted set of VCards to a user, this could potentially be exploited to execute arbitrary code with the user's privileges. (MFSA 2006-40, CVE-2006-2781)

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, Thunderbird would still execute them since BOM markers are filtered out before processing a mail containing JavaScript. (MFSA 2006-42, CVE-2006-2783)

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 Thunderbird and the proxy server, a malicious HTML email 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)

It was discovered that JavaScript run via EvalInSandbox() can escape the sandbox. Malicious scripts received in emails containing JavaScript could use these privileges to execute arbitrary code with the user's privileges. (MFSA 2006-31, CVE-2006-2787)

The 'enigmail' plugin has been updated to work with the new Thunderbird version.

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.

Several security related problems have been discovered in Mozilla which are also present in Mozilla Thunderbird. The Common Vulnerabilities and Exposures project identifies the following vulnerabilities :

  - CVE-2006-1942     Eric Foley discovered that a user can be tricked to     expose a local file to a remote attacker by displaying a     local file as image in connection with other     vulnerabilities. [MFSA-2006-39]

  - CVE-2006-2775     XUL attributes are associated with the wrong URL under     certain circumstances, which might allow remote     attackers to bypass restrictions. [MFSA-2006-35]

  - CVE-2006-2776     Paul Nickerson discovered that content-defined setters     on an object prototype were getting called by privileged     user interface code, and 'moz_bug_r_a4' demonstrated     that the higher privilege level could be passed along to     the content-defined attack code. [MFSA-2006-37]

  - CVE-2006-2777     A vulnerability allows remote attackers to execute     arbitrary code and create notifications that are     executed in a privileged context. [MFSA-2006-43]

  - CVE-2006-2778     Mikolaj Habryn discovered a buffer overflow in the     crypto.signText function that allows remote attackers to     execute arbitrary code via certain optional Certificate     Authority name arguments. [MFSA-2006-38]

  - CVE-2006-2779     Mozilla team members discovered several crashes during     testing of the browser engine showing evidence of memory     corruption which may also lead to the execution of     arbitrary code. This problem has only partially been     corrected. [MFSA-2006-32]

  - CVE-2006-2780     An integer overflow allows remote attackers to cause a     denial of service and may permit the execution of     arbitrary code. [MFSA-2006-32]

  - CVE-2006-2781     Masatoshi Kimura discovered a double-free vulnerability     that allows remote attackers to cause a denial of     service and possibly execute arbitrary code via a VCard.
    [MFSA-2006-40]

  - CVE-2006-2782     Chuck McAuley discovered that a text input box can be     pre-filled with a filename and then turned into a     file-upload control, allowing a malicious website to     steal any local file whose name they can guess.
    [MFSA-2006-41, MFSA-2006-23, CVE-2006-1729]

  - CVE-2006-2783     Masatoshi Kimura discovered that the Unicode     Byte-order-Mark (BOM) is stripped from UTF-8 pages     during the conversion to Unicode before the parser sees     the web page, which allows remote attackers to conduct     cross-site scripting (XSS) attacks. [MFSA-2006-42]

  - CVE-2006-2784     Paul Nickerson discovered that the fix for CVE-2005-0752     can be bypassed using nested javascript: URLs, allowing     the attacker to execute privileged code. [MFSA-2005-34,     MFSA-2006-36]

  - CVE-2006-2785     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. [MFSA-2006-34]

  - CVE-2006-2786     Kazuho Oku discovered that Mozilla's lenient handling of     HTTP header syntax may allow remote attackers to trick     the browser to interpret certain responses as if they     were responses from two different sites. [MFSA-2006-33]

  - CVE-2006-2787     The Mozilla researcher 'moz_bug_r_a4' discovered that     JavaScript run via EvalInSandbox can escape the sandbox     and gain elevated privilege. [MFSA-2006-31]

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 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.

ID	名稱	產品	系列	已發布	已更新	嚴重性
27870	Ubuntu 6.06 LTS : mozilla-thunderbird vulnerabilities (USN-297-1)	Nessus	Ubuntu Local Security Checks	2007/11/10	2021/1/19	high
22676	Debian DSA-1134-1 : mozilla-thunderbird - several vulnerabilities	Nessus	Debian Local Security Checks	2006/10/14	2021/1/4	high
22121	RHEL 4 : firefox (RHSA-2006:0610)	Nessus	Red Hat Local Security Checks	2006/7/29	2024/11/4	medium
22291	RHEL 2.1 : seamonkey (RHSA-2006:0594)	Nessus	Red Hat Local Security Checks	2006/8/30	2021/1/14	high

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