The installed version of Firefox is earlier than 10.0.11 and thus, is potentially affected by the following security issues :
  - Several memory safety bugs exist in the browser engine     used in Mozilla-based products that could be exploited     to execute arbitrary code. (CVE-2012-5843)

  - An error exists in the method     'image::RasterImage::DrawFrameTo' related to GIF images     that could allow a heap-based buffer overflow leading to     arbitrary code execution. (CVE-2012-4202)

  - Errors exist related to 'evalInSandbox', 'HZ-GB-2312'     charset, frames and the 'location' object, the 'Style     Inspector', and 'cross-origin wrappers' that could allow     cross-site scripting (XSS) attacks. (CVE-2012-4201,     CVE-2012-4207, CVE-2012-4209, CVE-2012-4210,     CVE-2012-5841)

  - Various use-after-free, out-of-bounds read and buffer     overflow errors exist that could potentially lead to     arbitrary code execution. (CVE-2012-4214, CVE-2012-4215,     CVE-2012-4216, CVE-2012-5829, CVE-2012-5830,     CVE-2012-5833, CVE-2012-5835, CVE-2012-5839,     CVE-2012-5840)

Please note the 10.x ESR branch will be unsupported as of 02/13/2013.
Only the 17.x ESR branch will receive security updates after that date.

The installed version of Firefox 10.x is potentially affected by the following security issues :
  - Several memory safety bugs exist in the browser engine     used in Mozilla-based products that could be exploited     to execute arbitrary code. (CVE-2012-5843)

  - An error exists in the method     'image::RasterImage::DrawFrameTo' related to GIF images     that could allow a heap-based buffer overflow, leading to     arbitrary code execution. (CVE-2012-4202)

  - An error exists related to the application installer     and DLL loading. (CVE-2012-4206)

  - Errors exist related to 'evalInSandbox', 'HZ-GB-2312'     charset, frames and the 'location' object, the 'Style     Inspector', and 'cross-origin wrappers' that could allow     cross-site scripting (XSS) attacks. (CVE-2012-4201,     CVE-2012-4207, CVE-2012-4209, CVE-2012-4210,     CVE-2012-5841)

  - Various use-after-free, out-of-bounds read and buffer     overflow errors exist that could potentially lead to     arbitrary code execution. (CVE-2012-4214, CVE-2012-4215,     CVE-2012-4216, CVE-2012-5829, CVE-2012-5830,     CVE-2012-5833, CVE-2012-5835, CVE-2012-5839,     CVE-2012-5840)

Please note the 10.x ESR branch will be unsupported as of 02/13/2013.
Only the 17.x ESR branch will receive security updates after that date.

The installed version of Firefox is earlier than 17.0 and thus, is potentially affected by the following security issues :

  - Several memory safety bugs exist in the browser engine     used in Mozilla-based products that could be exploited     to execute arbitrary code. (CVE-2012-5842,     CVE-2012-5843)

  - An error exists in the method     'image::RasterImage::DrawFrameTo' related to GIF images     that could allow a heap-based buffer overflow, leading to     arbitrary code execution. (CVE-2012-4202)

  - An error exists related to SVG text and CSS properties     that could lead to application crashes. (CVE-2012-5836)

  - A bookmarked, malicious 'javascript:' URL could allow     execution of local executables. (CVE-2012-4203)

  - The JavaScript function 'str_unescape' could allow     arbitrary code execution. (CVE-2012-4204)

  - 'XMLHttpRequest' objects inherit incorrect principals     when created in sandboxes that could allow cross-site     request forgery attacks (CSRF). (CVE-2012-4205)

  - An error exists related to the application installer     and DLL loading. (CVE-2012-4206)

  - 'XrayWrappers' can expose DOM properties that are     not meant to be accessible outside of the chrome     compartment. (CVE-2012-4208)

  - Errors exist related to 'evalInSandbox', 'HZ-GB-2312'     charset, frames and the 'location' object, the 'Style     Inspector', 'Developer Toolbar' and 'cross-origin     wrappers' that could allow cross-site scripting (XSS)     attacks. (CVE-2012-4201, CVE-2012-4207, CVE-2012-4209,     CVE-2012-4210, CVE-2012-5837, CVE-2012-5841)

  - Various use-after-free, out-of-bounds read and buffer     overflow errors exist that could potentially lead to     arbitrary code execution. (CVE-2012-4212, CVE-2012-4213,     CVE-2012-4214, CVE-2012-4215, CVE-2012-4216,     CVE-2012-4217, CVE-2012-4218, CVE-2012-5829,     CVE-2012-5830, CVE-2012-5833, CVE-2012-5835,     CVE-2012-5838, CVE-2012-5839, CVE-2012-5840)

The installed version of Thunderbird 10.x is potentially affected by the following security issues :
  - Several memory safety bugs exist in the browser engine     used in Mozilla-based products that could be exploited     to execute arbitrary code. (CVE-2012-5843)

  - An error exists in the method     'image::RasterImage::DrawFrameTo' related to GIF images     that could allow a heap-based buffer overflow, leading to     arbitrary code execution. (CVE-2012-4202)

  - Errors exist related to 'evalInSandbox', 'HZ-GB-2312'     charset, frames and the 'location' object, and     'cross-origin wrappers' that could allow cross-site     scripting (XSS) attacks. (CVE-2012-4201,     CVE-2012-4207, CVE-2012-4209, CVE-2012-5841)

  - Various use-after-free, out-of-bounds read and buffer     overflow errors exist that could potentially lead to     arbitrary code execution. (CVE-2012-4214, CVE-2012-4215,     CVE-2012-4216, CVE-2012-5829, CVE-2012-5830,     CVE-2012-5833, CVE-2012-5835, CVE-2012-5839,     CVE-2012-5840)

Please note the 10.x ESR branch will be unsupported as of 02/13/2013.
Only the 17.x ESR branch will receive security updates after that date.

The installed version of SeaMonkey is earlier than 2.14 and thus, is potentially affected by the following security issues :

  - Several memory safety bugs exist in the browser engine     used in Mozilla-based products that could be exploited     to execute arbitrary code. (CVE-2012-5842,     CVE-2012-5843)

  - An error exists in the method     'image::RasterImage::DrawFrameTo' related to GIF images     that could allow a heap-based buffer overflow leading to     arbitrary code execution. (CVE-2012-4202)

  - An error exists related to SVG text and CSS properties     that could lead to application crashes. (CVE-2012-5836)

  - The JavaScript function 'str_unescape' could allow     arbitrary code execution. (CVE-2012-4204)

  - 'XMLHttpRequest' objects inherit incorrect principals     when created in sandboxes that could allow cross-site     request forgery attacks (CSRF). (CVE-2012-4205)

  - 'XrayWrappers' can expose DOM properties that are     not meant to be accessible outside of the chrome     compartment. (CVE-2012-4208)

  - Errors exist related to 'evalInSandbox', 'HZ-GB-2312'     charset, frames and the 'location' object, and     'cross-origin wrappers' that can allow cross-site     scripting (XSS) attacks. (CVE-2012-4201, CVE-2012-4207,     CVE-2012-4209, CVE-2012-5841)

  - Various use-after-free, out-of-bounds read and buffer     overflow errors exist that could potentially lead to     arbitrary code execution. (CVE-2012-4212, CVE-2012-4213,     CVE-2012-4214, CVE-2012-4215, CVE-2012-4216,     CVE-2012-4217, CVE-2012-4218, CVE-2012-5829,     CVE-2012-5830, CVE-2012-5833, CVE-2012-5835,     CVE-2012-5838, CVE-2012-5839, CVE-2012-5840)

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2012-1482 advisory.

    firefox     [10.0.11-1.0.1.el6_3]
    - Add firefox-oracle-default-prefs.js and remove the corresponding Red Hat ones

    [10.0.11-1]
    - Update to 10.0.11 ESR

    xulrunner     [10.0.11-1.0.1.el6_3]
    - Replaced xulrunner-redhat-default-prefs.js with xulrunner-oracle-default-prefs.js

    [10.0.11-1]
    - Update to 10.0.11 ESR

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.

The remote Redhat Enterprise Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2012:1482 advisory.

    Mozilla Firefox is an open source web browser. XULRunner provides the     XUL Runtime environment for Mozilla Firefox.

    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-2012-4214, CVE-2012-4215, CVE-2012-4216, CVE-2012-5829,     CVE-2012-5830, CVE-2012-5833, CVE-2012-5835, CVE-2012-5839, CVE-2012-5840,     CVE-2012-5842)

    A buffer overflow flaw was found in the way Firefox handled GIF (Graphics     Interchange Format) images. A web page containing a malicious GIF image     could cause Firefox to crash or, possibly, execute arbitrary code with the     privileges of the user running Firefox. (CVE-2012-4202)

    A flaw was found in the way the Style Inspector tool in Firefox handled     certain Cascading Style Sheets (CSS). Running the tool (Tools -> Web     Developer -> Inspect) on malicious CSS could result in the execution of     HTML and CSS content with chrome privileges. (CVE-2012-4210)

    A flaw was found in the way Firefox decoded the HZ-GB-2312 character     encoding. A web page containing malicious content could cause Firefox to     run JavaScript code with the permissions of a different website.
    (CVE-2012-4207)

    A flaw was found in the location object implementation in Firefox.
    Malicious content could possibly use this flaw to allow restricted content     to be loaded by plug-ins. (CVE-2012-4209)

    A flaw was found in the way cross-origin wrappers were implemented.
    Malicious content could use this flaw to perform cross-site scripting     attacks. (CVE-2012-5841)

    A flaw was found in the evalInSandbox implementation in Firefox. Malicious     content could use this flaw to perform cross-site scripting attacks.
    (CVE-2012-4201)

    For technical details regarding these flaws, refer to the Mozilla security     advisories for Firefox 10.0.11 ESR. You can find a link to the Mozilla     advisories in the References section of this erratum.

    Red Hat would like to thank the Mozilla project for reporting these issues.
    Upstream acknowledges Abhishek Arya, miaubiz, Jesse Ruderman, Andrew     McCreight, Bob Clary, Kyle Huey, Atte Kettunen, Mariusz Mlynski, Masato     Kinugawa, Bobby Holley, and moz_bug_r_a4 as the original reporters of these     issues.

    All Firefox users should upgrade to these updated packages, which contain     Firefox version 10.0.11 ESR, which corrects these issues. After installing     the update, Firefox must be restarted for the changes to take effect.

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.

Several flaws were found in the processing of malformed content.
Malicious content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2012-4214, CVE-2012-4215, CVE-2012-4216, CVE-2012-5829, CVE-2012-5830, CVE-2012-5833, CVE-2012-5835, CVE-2012-5839, CVE-2012-5840, CVE-2012-5842)

A buffer overflow flaw was found in the way Thunderbird handled GIF (Graphics Interchange Format) images. Content containing a malicious GIF image could cause Thunderbird to crash or, possibly, execute arbitrary code with the privileges of the user running Thunderbird.
(CVE-2012-4202)

A flaw was found in the way Thunderbird decoded the HZ-GB-2312 character encoding. Malicious content could cause Thunderbird to run JavaScript code with the permissions of different content.
(CVE-2012-4207)

A flaw was found in the location object implementation in Thunderbird.
Malicious content could possibly use this flaw to allow restricted content to be loaded by plug-ins. (CVE-2012-4209)

A flaw was found in the way cross-origin wrappers were implemented.
Malicious content could use this flaw to perform cross-site scripting attacks. (CVE-2012-5841)

A flaw was found in the evalInSandbox implementation in Thunderbird.
Malicious content could use this flaw to perform cross-site scripting attacks. (CVE-2012-4201)

Note: All issues except CVE-2012-4202 cannot be exploited by a specially crafted HTML mail message as JavaScript is disabled by default for mail messages. They could be exploited another way in Thunderbird, for example, when viewing the full remote content of an RSS feed.

After installing the update, Thunderbird must be restarted for the changes to take effect.

USN-1638-1 fixed vulnerabilities in Firefox. This update provides an updated ubufox package for use with the latest Firefox.

Gary Kwong, Jesse Ruderman, Christian Holler, Bob Clary, Kyle Huey, Ed Morley, Chris Lord, Boris Zbarsky, Julian Seward, Bill McCloskey, and Andrew McCreight discovered multiple memory safety issues affecting Firefox. If the user were tricked into opening a specially crafted page, an attacker could possibly exploit these to cause a denial of service via application crash, or potentially execute code with the privileges of the user invoking Firefox. (CVE-2012-5842, CVE-2012-5843)

Atte Kettunen discovered a buffer overflow while rendering GIF format images. An attacker could exploit this to possibly execute arbitrary code as the user invoking Firefox. (CVE-2012-4202)

It was discovered that the evalInSandbox function's JavaScript sandbox context could be circumvented. An attacker could exploit this to perform a cross-site scripting (XSS) attack or steal a copy of a local file if the user has installed an add-on vulnerable to this attack.
With cross-site scripting vulnerabilities, if a user were tricked into viewing a specially crafted page, a remote attacker could exploit this to modify the contents, or steal confidential data, within the same domain. (CVE-2012-4201)

Jonathan Stephens discovered that combining vectors involving the setting of Cascading Style Sheets (CSS) properties in conjunction with SVG text could cause Firefox to crash. If a user were tricked into opening a malicious web page, an attacker could cause a denial of service via application crash or execute arbitrary code with the privliges of the user invoking the program. (CVE-2012-5836)

It was discovered that if a javascript: URL is selected from the list of Firefox 'new tab' page, the script will inherit the privileges of the privileged 'new tab' page. This allows for the execution of locally installed programs if a user can be convinced to save a bookmark of a malicious javascript: URL. (CVE-2012-4203)

Scott Bell discovered a memory corruption issue 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 arbitrary code as the user invoking the program.
(CVE-2012-4204)

Gabor Krizsanits discovered that XMLHttpRequest objects created within sandboxes have the system principal instead of the sandbox principal. This can lead to cross-site request forgery (CSRF) or information theft via an add-on running untrusted code in a sandbox. (CVE-2012-4205)

Peter Van der Beken discovered XrayWrapper implementation in Firefox does not consider the compartment during property filtering. An attacker could use this to bypass intended chrome-only restrictions on reading DOM object properties via a crafted website. (CVE-2012-4208)

Bobby Holley discovered that cross-origin wrappers were allowing write actions on objects when only read actions should have been properly allowed. This can lead to cross-site scripting (XSS) attacks. With cross-site scripting vulnerabilities, if a user were tricked into viewing a specially crafted page, a remote attacker could exploit this to modify the contents, or steal confidential data, within the same domain. (CVE-2012-5841)

Masato Kinugawa discovered that when HZ-GB-2312 charset encoding is used for text, the '~' character will destroy another character near the chunk delimiter. This can lead to a cross-site scripting (XSS) attack in pages encoded in HZ-GB-2312. With cross-site scripting vulnerabilities, if a user were tricked into viewing a specially crafted page, a remote attacker could exploit these to modify the contents, or steal confidential data, within the same domain.
(CVE-2012-4207)

Mariusz Mlynski discovered that the location property can be accessed by binary plugins through top.location with a frame whose name attribute's value is set to 'top'. This can allow for possible cross-site scripting (XSS) attacks through plugins. With cross-site scripting vulnerabilities, if a user were tricked into viewing a specially crafted page, a remote attacker could exploit this to modify the contents, or steal confidential data, within the same domain.
(CVE-2012-4209)

Mariusz Mlynski discovered that when a maliciously crafted stylesheet is inspected in the Style Inspector, HTML and CSS can run in a chrome privileged context without being properly sanitized first. If a user were tricked into opening a malicious web page, an attacker could execute arbitrary code with the privliges of the user invoking the program. (CVE-2012-4210)

Abhishek Arya discovered multiple use-after-free and buffer overflow issues in Firefox. If a user were tricked into opening a malicious page, an attacker could exploit these to execute arbitrary code as the user invoking the program.
(CVE-2012-4214, CVE-2012-4215, CVE-2012-4216, CVE-2012-5829, CVE-2012-5839, CVE-2012-5840, CVE-2012-4212, CVE-2012-4213, CVE-2012-4217, CVE-2012-4218)

Several memory corruption flaws were discovered in Firefox.
If a user were tricked into opening a malicious page, an attacker could exploit these to execute arbitrary code as the user invoking the program. (CVE-2012-5830, CVE-2012-5833, CVE-2012-5835, CVE-2012-5838).

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.

Mozilla Firefox has been updated to the 10.0.11 ESR security release, which fixes various bugs and security issues.

  - Security researcher miaubiz used the Address Sanitizer     tool to discover a series critically rated of     use-after-free, buffer overflow, and memory corruption     issues in shipped software. These issues are potentially     exploitable, allowing for remote code execution. We     would also like to thank miaubiz for reporting two     additional use-after-free and memory corruption issues     introduced during Firefox development that have been     fixed before general release. (MFSA 2012-106)

    In general these flaws cannot be exploited through email     in the Thunderbird and SeaMonkey products because     scripting is disabled, but are potentially a risk in     browser or browser-like contexts in those products.
    References

    The following issues have been fixed in Firefox 17 and     ESR 10.0.11 :

o use-after-free when loading html file on osx (CVE-2012-5830) o Mesa crashes on certain texImage2D calls involving level>0 (CVE-2012-5833) o integer overflow, invalid write w/webgl bufferdata. (CVE-2012-5835)

The following issues have been fixed in Firefox 17 :

o crash in copyTexImage2D with image dimensions too large for given level. (CVE-2012-5838)

  - Security researcher Abhishek Arya (Inferno) of the     Google Chrome Security Team discovered a series     critically rated of use-after-free and buffer overflow     issues using the Address Sanitizer tool in shipped     software. These issues are potentially exploitable,     allowing for remote code execution. We would also like     to thank Abhishek for reporting five additional     use-after-free, out of bounds read, and buffer overflow     flaws introduced during Firefox development that have     been fixed before general release. (MFSA 2012-105)

    In general these flaws cannot be exploited through email     in the Thunderbird and SeaMonkey products because     scripting is disabled, but are potentially a risk in     browser or browser-like contexts in those products.
    References

    The following issues have been fixed in Firefox 17 and     ESR 10.0.11 :

o Heap-use-after-free in nsTextEditorState::PrepareEditor (CVE-2012-4214) o Heap-use-after-free in nsPlaintextEditor::FireClipboardEvent (CVE-2012-4215) o Heap-use-after-free in gfxFont::GetFontEntry (CVE-2012-4216) o Heap-buffer-overflow in nsWindow::OnExposeEvent (CVE-2012-5829) o heap-buffer-overflow in gfxShapedWord::CompressedGlyph::IsClusterStart o CVE-2012-5839 o Heap-use-after-free in nsTextEditorState::PrepareEditor. (CVE-2012-5840)

The following issues have been fixed in Firefox 17 :

o Heap-use-after-free in XPCWrappedNative::Mark (CVE-2012-4212) o Heap-use-after-free in nsEditor::FindNextLeafNode (CVE-2012-4213) o Heap-use-after-free in nsViewManager::ProcessPendingUpdates (CVE-2012-4217) o Heap-use-after-free BuildTextRunsScanner::BreakSink::SetBreaks. (CVE-2012-4218)

  - Security researcher Mariusz Mlynski reported that when a     maliciously crafted stylesheet is inspected in the Style     Inspector, HTML and CSS can run in a chrome privileged     context without being properly sanitized first. This can     lead to arbitrary code execution. (MFSA 2012-104 /     CVE-2012-4210)

  - Security researcher Mariusz Mlynski reported that the     location property can be accessed by binary plugins     through top.location with a frame whose name attribute's     value is set to 'top'. This can allow for possible     cross-site scripting (XSS) attacks through plugins.
    (MFSA 2012-103 / CVE-2012-4209)

    In general these flaws cannot be exploited through email     in the Thunderbird and SeaMonkey products because     scripting is disabled, but are potentially a risk in     browser or browser-like contexts in those products.

  - Security researcher Masato Kinugawa reported that when     script is entered into the Developer Toolbar, it runs in     a chrome privileged context. This allows for arbitrary     code execution or cross-site scripting (XSS) if a user     can be convinced to paste malicious code into the     Developer Toolbar. (MFSA 2012-102 / CVE-2012-5837)

  - Security researcher Masato Kinugawa found when     HZ-GB-2312 charset encoding is used for text, the '~'     character will destroy another character near the chunk     delimiter. This can lead to a cross-site scripting (XSS)     attack in pages encoded in HZ-GB-2312. (MFSA 2012-101 /     CVE-2012-4207)

  - Mozilla developer Bobby Holley reported that security     wrappers filter at the time of property access, but once     a function is returned, the caller can use this function     without further security checks. This affects     cross-origin wrappers, allowing for write actions on     objects when only read actions should be properly     allowed. This can lead to cross-site scripting (XSS)     attacks. (MFSA 2012-100 / CVE-2012-5841)

    In general these flaws cannot be exploited through email     in the Thunderbird and SeaMonkey products because     scripting is disabled, but are potentially a risk in     browser or browser-like contexts in those products.

  - Mozilla developer Peter Van der Beken discovered that     same-origin XrayWrappers expose chrome-only properties     even when not in a chrome compartment. This can allow     web content to get properties of DOM objects that are     intended to be chrome-only. (MFSA 2012-99 /     CVE-2012-4208)

    In general these flaws cannot be exploited through email     in the Thunderbird and SeaMonkey products because     scripting is disabled, but are potentially a risk in     browser or browser-like contexts in those products.

  - Security researcher Robert Kugler reported that when a     specifically named DLL file on a Windows computer is     placed in the default downloads directory with the     Firefox installer, the Firefox installer will load this     DLL when it is launched. In circumstances where the     installer is run by an administrator privileged account,     this allows for the downloaded DLL file to be run with     administrator privileges. This can lead to arbitrary     code execution from a privileged account. (MFSA 2012-98     / CVE-2012-4206)

  - Mozilla developer Gabor Krizsanits discovered that     XMLHttpRequest objects created within sandboxes have the     system principal instead of the sandbox principal. This     can lead to cross-site request forgery (CSRF) or     information theft via an add-on running untrusted code     in a sandbox. (MFSA 2012-97 / CVE-2012-4205)

  - Security researcher Scott Bell of     Security-Assessment.com used the Address Sanitizer tool     to discover a memory corruption in str_unescape in the     JavaScript engine. This could potentially lead to     arbitrary code execution. (MFSA 2012-96 / CVE-2012-4204)

    In general these flaws cannot be exploited through email     in the Thunderbird and SeaMonkey products because     scripting is disabled, but are potentially a risk in     browser or browser-like contexts in those products.

  - Security researcher kakzz.ng@gmail.com reported that if     a javascript: URL is selected from the list of Firefox     'new tab' page, the script will inherit the privileges     of the privileged 'new tab' page. This allows for the     execution of locally installed programs if a user can be     convinced to save a bookmark of a malicious javascript:
    URL. (MFSA 2012-95 / CVE-2012-4203)

  - Security researcher Jonathan Stephens discovered that     combining SVG text on a path with the setting of CSS     properties could lead to a potentially exploitable     crash. (MFSA 2012-94 / CVE-2012-5836)

  - Mozilla security researcher moz_bug_r_a4 reported that     if code executed by the evalInSandbox function sets     location.href, it can get the wrong subject principal     for the URL check, ignoring the sandbox's JavaScript     context and gaining the context of evalInSandbox object.
    This can lead to malicious web content being able to     perform a cross-site scripting (XSS) attack or stealing     a copy of a local file if the user has installed an     add-on vulnerable to this attack. (MFSA 2012-93 /     CVE-2012-4201)

  - Security researcher Atte Kettunen from OUSPG used the     Address Sanitizer tool to discover a buffer overflow     while rendering GIF format images. This issue is     potentially exploitable and could lead to arbitrary code     execution. (MFSA 2012-92 / CVE-2012-4202)

  - Mozilla developers identified and fixed several memory     safety bugs in the browser engine used in Firefox and     other Mozilla-based products. Some of these bugs 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. (MFSA 2012-91)

    In general these flaws cannot be exploited through email     in the Thunderbird and SeaMonkey products because     scripting is disabled, but are potentially a risk in     browser or browser-like contexts in those products.
    References

    Gary Kwong, Jesse Ruderman, Christian Holler, Bob Clary,     Kyle Huey, Ed Morley, Chris Lord, Boris Zbarsky, Julian     Seward, and Bill McCloskey reported memory safety     problems and crashes that affect Firefox 16.
    (CVE-2012-5843)

    Jesse Ruderman, Andrew McCreight, Bob Clary, and Kyle     Huey reported memory safety problems and crashes that     affect Firefox ESR 10 and Firefox 16. (CVE-2012-5842)

USN-1638-1 fixed vulnerabilities in Firefox. The new packages introduced regressions in cookies handling and the User Agent string.
This update fixes the problem.

Gary Kwong, Jesse Ruderman, Christian Holler, Bob Clary, Kyle Huey, Ed Morley, Chris Lord, Boris Zbarsky, Julian Seward, Bill McCloskey, and Andrew McCreight discovered multiple memory safety issues affecting Firefox. If the user were tricked into opening a specially crafted page, an attacker could possibly exploit these to cause a denial of service via application crash, or potentially execute code with the privileges of the user invoking Firefox. (CVE-2012-5842, CVE-2012-5843)

Atte Kettunen discovered a buffer overflow while rendering GIF format images. An attacker could exploit this to possibly execute arbitrary code as the user invoking Firefox. (CVE-2012-4202)

It was discovered that the evalInSandbox function's JavaScript sandbox context could be circumvented. An attacker could exploit this to perform a cross-site scripting (XSS) attack or steal a copy of a local file if the user has installed an add-on vulnerable to this attack.
With cross-site scripting vulnerabilities, if a user were tricked into viewing a specially crafted page, a remote attacker could exploit this to modify the contents, or steal confidential data, within the same domain. (CVE-2012-4201)

Jonathan Stephens discovered that combining vectors involving the setting of Cascading Style Sheets (CSS) properties in conjunction with SVG text could cause Firefox to crash. If a user were tricked into opening a malicious web page, an attacker could cause a denial of service via application crash or execute arbitrary code with the privliges of the user invoking the program. (CVE-2012-5836)

It was discovered that if a javascript: URL is selected from the list of Firefox 'new tab' page, the script will inherit the privileges of the privileged 'new tab' page. This allows for the execution of locally installed programs if a user can be convinced to save a bookmark of a malicious javascript: URL. (CVE-2012-4203)

Scott Bell discovered a memory corruption issue 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 arbitrary code as the user invoking the program.
(CVE-2012-4204)

Gabor Krizsanits discovered that XMLHttpRequest objects created within sandboxes have the system principal instead of the sandbox principal. This can lead to cross-site request forgery (CSRF) or information theft via an add-on running untrusted code in a sandbox. (CVE-2012-4205)

Peter Van der Beken discovered XrayWrapper implementation in Firefox does not consider the compartment during property filtering. An attacker could use this to bypass intended chrome-only restrictions on reading DOM object properties via a crafted website. (CVE-2012-4208)

Bobby Holley discovered that cross-origin wrappers were allowing write actions on objects when only read actions should have been properly allowed. This can lead to cross-site scripting (XSS) attacks. With cross-site scripting vulnerabilities, if a user were tricked into viewing a specially crafted page, a remote attacker could exploit this to modify the contents, or steal confidential data, within the same domain. (CVE-2012-5841)

Masato Kinugawa discovered that when HZ-GB-2312 charset encoding is used for text, the '~' character will destroy another character near the chunk delimiter. This can lead to a cross-site scripting (XSS) attack in pages encoded in HZ-GB-2312. With cross-site scripting vulnerabilities, if a user were tricked into viewing a specially crafted page, a remote attacker could exploit this to modify the contents, or steal confidential data, within the same domain.
(CVE-2012-4207)

Masato Kinugawa discovered that scripts entered into the Developer Toolbar could run in a chrome privileged context.
An attacker could use this vulnerability to conduct cross-site scripting (XSS) attacks or execute arbitrary code as the user invoking Firefox. With cross-site scripting vulnerabilities, if a user were tricked into viewing a specially crafted page, a remote attacker could exploit this to modify the contents, or steal confidential data, within the same domain. (CVE-2012-5837)

Mariusz Mlynski discovered that the location property can be accessed by binary plugins through top.location with a frame whose name attribute's value is set to 'top'. This can allow for possible cross-site scripting (XSS) attacks through plugins. With cross-site scripting vulnerabilities, if a user were tricked into viewing a specially crafted page, a remote attacker could exploit this to modify the contents, or steal confidential data, within the same domain.
(CVE-2012-4209)

Mariusz Mlynski discovered that when a maliciously crafted stylesheet is inspected in the Style Inspector, HTML and CSS can run in a chrome privileged context without being properly sanitized first. If a user were tricked into opening a malicious web page, an attacker could execute arbitrary code with the privliges of the user invoking the program. (CVE-2012-4210)

Abhishek Arya discovered multiple use-after-free and buffer overflow issues in Firefox. If a user were tricked into opening a malicious page, an attacker could exploit these to execute arbitrary code as the user invoking the program.
(CVE-2012-4214, CVE-2012-4215, CVE-2012-4216, CVE-2012-5829, CVE-2012-5839, CVE-2012-5840, CVE-2012-4212, CVE-2012-4213, CVE-2012-4217, CVE-2012-4218)

Several memory corruption flaws were discovered in Firefox.
If a user were tricked into opening a malicious page, an attacker could exploit these to execute arbitrary code as the user invoking the program. (CVE-2012-5830, CVE-2012-5833, CVE-2012-5835, CVE-2012-5838).

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.

An updated thunderbird package that fixes several security issues is now available for Red Hat Enterprise Linux 5 and 6.

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 Thunderbird is a standalone mail and newsgroup client.

Several flaws were found in the processing of malformed content.
Malicious content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2012-4214, CVE-2012-4215, CVE-2012-4216, CVE-2012-5829, CVE-2012-5830, CVE-2012-5833, CVE-2012-5835, CVE-2012-5839, CVE-2012-5840, CVE-2012-5842)

A buffer overflow flaw was found in the way Thunderbird handled GIF (Graphics Interchange Format) images. Content containing a malicious GIF image could cause Thunderbird to crash or, possibly, execute arbitrary code with the privileges of the user running Thunderbird.
(CVE-2012-4202)

A flaw was found in the way Thunderbird decoded the HZ-GB-2312 character encoding. Malicious content could cause Thunderbird to run JavaScript code with the permissions of different content.
(CVE-2012-4207)

A flaw was found in the location object implementation in Thunderbird.
Malicious content could possibly use this flaw to allow restricted content to be loaded by plug-ins. (CVE-2012-4209)

A flaw was found in the way cross-origin wrappers were implemented.
Malicious content could use this flaw to perform cross-site scripting attacks. (CVE-2012-5841)

A flaw was found in the evalInSandbox implementation in Thunderbird.
Malicious content could use this flaw to perform cross-site scripting attacks. (CVE-2012-4201)

Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Abhishek Arya, miaubiz, Jesse Ruderman, Andrew McCreight, Bob Clary, Kyle Huey, Atte Kettunen, Masato Kinugawa, Mariusz Mlynski, Bobby Holley, and moz_bug_r_a4 as the original reporters of these issues.

Note: All issues except CVE-2012-4202 cannot be exploited by a specially crafted HTML mail message as JavaScript is disabled by default for mail messages. They could be exploited another way in Thunderbird, for example, when viewing the full remote content of an RSS feed.

All Thunderbird users should upgrade to this updated package, which contains Thunderbird version 10.0.11 ESR, which corrects these issues.
After installing the update, Thunderbird must be restarted for the changes to take effect.

Versions of Mozilla Thunderbird prior to 17.0 are affected by the following security issues :

 - Several memory safety bugs exist in the browser engine used in Mozilla-based products that could be exploited to execute arbitrary code. (CVE-2012-5842, CVE-2012-5843)
 - An error exists in the method 'image::RasterImage::DrawFrameTo' related to GIF images that could allow a heap-based buffer overflow, leading to arbitrary code execution. (CVE-2012-4202)
 - An error exists related to SVG text and CSS properties that could lead to application crashes. (CVE-2012-5836) - The JavaScript function 'str_unescape' could allow arbitrary code execution. (CVE-2012-4204)
 - 'XMLHttpRequest' objects inherit incorrect principals when created in sandboxes that could allow cross-site request forgery attacks (XSRF). (CVE-2012-4205)
 - 'XrayWrappers' can expose DOM properties that are not meant to be accessible outside of the chrome compartment. (CVE-2012-4208)
 - Errors exist related to 'evalInSandbox', 'HZ-GB-2312' charset, frames and the 'location' object, and 'cross-origin wrappers' that could allow cross-site scripting (XSS) attacks. (CVE-2012-4201, CVE-2012-4207, CVE-2012-4209 CVE-2012-5841)
 - Various use-after-free, out-of-bounds read and buffer overflow errors exist that could potentially lead to arbitrary code execution. (CVE-2012-4212, CVE-2012-4213, CVE-2012-4214, CVE-2012-4215, CVE-2012-4216, CVE-2012-4217, CVE-2012-4218, CVE-2012-5829, CVE-2012-5830, CVE-2012-5833, CVE-2012-5835, CVE-2012-5838, CVE-2012-5839, CVE-2012-5840)

Versions of Firefox prior to 17.0 are potentially affected by the following security issues :

 - Several memory safety bugs exist in the browser engine used in Mozilla-based products that could be exploited to execute arbitrary code. (CVE-2012-5842, CVE-2012-5843)
 - An error exists in the method 'image::RasterImage::DrawFrameTo' related to GIF images that could allow a heap-based buffer overflow, leading to arbitrary code execution. (CVE-2012-4202)
 - An error exists related to SVG text and CSS properties that could lead to application crashes. (CVE-2012-5836)
 - A bookmarked, malicious 'javascript:' URL could allow execution of local executables. (CVE-2012-4203)
 - The JavaScript function 'str_unescape' could allow arbitrary code execution. (CVE-2012-4204)
 - 'XMLHttpRequest' objects inherit incorrect principals when created in sandboxes that could allow cross-site request forgery attacks (XSRF). (CVE-2012-4205)
 - An error exists related to the application installer and DLL loading. (CVE-2012-4206)
  - 'XrayWrappers' can expose DOM properties that are not meant to be accessible outside of the chrome compartment. (CVE-2012-4208)
 - Errors exist related to 'evalInSandbox', 'HZ-GB-2312' charset, frames and the 'location' object, the 'Style Inspector', 'Developer Toolbar' and 'cross-origin wrappers' that could allow cross-site scripting (XSS) attacks. (CVE-2012-4201, CVE-2012-4207, CVE-2012-4209, CVE-2012-4210, CVE-2012-5837, CVE-2012-5841)
 - Various use-after-free, out-of-bounds read and buffer overflow errors exist that could potentially lead to arbitrary code execution. (CVE-2012-4212, CVE-2012-4213, CVE-2012-4214, CVE-2012-4215, CVE-2012-4216, CVE-2012-4217, CVE-2012-4218, CVE-2012-5829, CVE-2012-5830, CVE-2012-5833, CVE-2012-5835, CVE-2012-5838, CVE-2012-5839, CVE-2012-5840)

Versions of SeaMonkey 2.13.x are potentially affected by the following security issues :

  - Several memory safety bugs exist in the browser engine used in Mozilla-based products that could be exploited to execute arbitrary code. (CVE-2012-5842, CVE-2012-5843)

  - An error exists in the method 'image::RasterImage::DrawFrameTo' related to GIF images that could allow a heap-based buffer overflow leading to arbitrary code execution. (CVE-2012-4202)

  - An error exists related to SVG text and CSS properties that could lead to application crashes. (CVE-2012-5836)

  - The JavaScript function 'str_unescape' could allow arbitrary code execution. (CVE-2012-4204)

  - 'XMLHttpRequest' objects inherit incorrect principals when created in sandboxes that could allow cross-site request forgery attacks (XSRF). (CVE-2012-4205)

  - 'XrayWrappers' can expose DOM properties that are not meant to be accessible outside of the chrome compartment. (CVE-2012-4208)

  - Errors exist related to 'evalInSandbox', 'HZ-GB-2312' charset, frames and the 'location' object, and 'cross-origin wrappers' that can allow cross-site scripting (XSS) attacks. (CVE-2012-4201, CVE-2012-4207, CVE-2012-4209, CVE-2012-5841)

  - Various use-after-free, out-of-bounds read and buffer overflow errors exist that could potentially lead to arbitrary code execution. (CVE-2012-4212, CVE-2012-4213, CVE-2012-4214, CVE-2012-4215, CVE-2012-4216, CVE-2012-4217, CVE-2012-4218, CVE-2012-5829, CVE-2012-5830, CVE-2012-5833, CVE-2012-5835, CVE-2012-5838, CVE-2012-5839, CVE-2012-5840)

Versions of Thunderbird 16.x are potentially affected by the following security issues :

  - Several memory safety bugs exist in the browser engine used in Mozilla-based products that could be exploited to execute arbitrary code. (CVE-2012-5842, CVE-2012-5843)

  - An error exists in the method 'image::RasterImage::DrawFrameTo' related to GIF images that could allow a heap-based buffer overflow, leading to arbitrary code execution. (CVE-2012-4202)

  - An error exists related to SVG text and CSS properties that could lead to application crashes. (CVE-2012-5836)  - The JavaScript function 'str_unescape' could allow arbitrary code execution. (CVE-2012-4204)

  - 'XMLHttpRequest' objects inherit incorrect principals when created in sandboxes that could allow cross-site request forgery attacks (XSRF). (CVE-2012-4205)

  - 'XrayWrappers' can expose DOM properties that are not meant to be accessible outside of the chrome compartment. (CVE-2012-4208)

  - Errors exist related to 'evalInSandbox', 'HZ-GB-2312' charset, frames and the 'location' object, and 'cross-origin wrappers' that could allow cross-site scripting (XSS) attacks. (CVE-2012-4201, CVE-2012-4207, CVE-2012-4209 CVE-2012-5841)

  - Various use-after-free, out-of-bounds read and buffer overflow errors exist that could potentially lead to arbitrary code execution. (CVE-2012-4212, CVE-2012-4213, CVE-2012-4214, CVE-2012-4215, CVE-2012-4216, CVE-2012-4217, CVE-2012-4218, CVE-2012-5829, CVE-2012-5830, CVE-2012-5833, CVE-2012-5835, CVE-2012-5838, CVE-2012-5839, CVE-2012-5840)

Versions of Firefox 16.x are potentially affected by the following security issues :

  - Several memory safety bugs exist in the browser engine used in Mozilla-based products that could be exploited to execute arbitrary code. (CVE-2012-5842, CVE-2012-5843)

  - An error exists in the method 'image::RasterImage::DrawFrameTo' related to GIF images that could allow a heap-based buffer overflow, leading to arbitrary code execution. (CVE-2012-4202)

  - An error exists related to SVG text and CSS properties that could lead to application crashes. (CVE-2012-5836)

  - A bookmarked, malicious 'javascript:' URL could allow execution of local executables. (CVE-2012-4203)

  - The JavaScript function 'str_unescape' could allow arbitrary code execution. (CVE-2012-4204)

  - 'XMLHttpRequest' objects inherit incorrect principals when created in sandboxes that could allow cross-site request forgery attacks (XSRF). (CVE-2012-4205)

  - An error exists related to the application installer and DLL loading. (CVE-2012-4206)

   - 'XrayWrappers' can expose DOM properties that are not meant to be accessible outside of the chrome compartment. (CVE-2012-4208)

  - Errors exist related to 'evalInSandbox', 'HZ-GB-2312' charset, frames and the 'location' object, the 'Style Inspector', 'Developer Toolbar' and 'cross-origin wrappers' that could allow cross-site scripting (XSS) attacks. (CVE-2012-4201, CVE-2012-4207, CVE-2012-4209, CVE-2012-4210, CVE-2012-5837, CVE-2012-5841)

  - Various use-after-free, out-of-bounds read and buffer overflow errors exist that could potentially lead to arbitrary code execution. (CVE-2012-4212, CVE-2012-4213, CVE-2012-4214, CVE-2012-4215, CVE-2012-4216, CVE-2012-4217, CVE-2012-4218, CVE-2012-5829, CVE-2012-5830, CVE-2012-5833, CVE-2012-5835, CVE-2012-5838, CVE-2012-5839, CVE-2012-5840)

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
62993	Firefox < 10.0.11 Multiple Vulnerabilities (Mac OS X)	Nessus	MacOS X Local Security Checks	2012/11/21	2019/12/4	critical
62997	Firefox 10.x < 10.0.11 Multiple Vulnerabilities	Nessus	Windows	2012/11/21	2019/12/4	critical
62998	Firefox < 17.0 Multiple Vulnerabilities	Nessus	Windows	2012/11/21	2019/12/4	critical
62999	Mozilla Thunderbird 10.x < 10.0.11 Multiple Vulnerabilities	Nessus	Windows	2012/11/21	2019/12/4	critical
63001	SeaMonkey < 2.14 Multiple Vulnerabilities	Nessus	Windows	2012/11/21	2019/12/4	critical
68659	Oracle Linux 5 / 6 : firefox (ELSA-2012-1482)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2024/10/23	high
62980	RHEL 5 / 6 : firefox (RHSA-2012:1482)	Nessus	Red Hat Local Security Checks	2012/11/21	2024/11/4	high
63020	Scientific Linux Security Update : thunderbird on SL5.x, SL6.x i386/x86_64 (20121120)	Nessus	Scientific Linux Local Security Checks	2012/11/23	2021/1/14	critical
63026	Ubuntu 10.04 LTS / 11.10 / 12.04 LTS / 12.10 : ubufox update (USN-1638-2)	Nessus	Ubuntu Local Security Checks	2012/11/23	2019/9/19	critical
63091	SuSE 10 Security Update : Mozilla Firefox (ZYPP Patch Number 8381)	Nessus	SuSE Local Security Checks	2012/11/29	2021/1/19	critical
63145	Ubuntu 10.04 LTS / 11.10 / 12.04 LTS / 12.10 : firefox regressions (USN-1638-3)	Nessus	Ubuntu Local Security Checks	2012/12/4	2019/9/19	critical
63006	CentOS 5 / 6 : thunderbird (CESA-2012:1483)	Nessus	CentOS Local Security Checks	2012/11/23	2021/1/4	high
6627	Mozilla Thunderbird < 17.0 Multiple Vulnerabilities	Nessus Network Monitor	SMTP Clients	2012/11/29	2019/3/6	high
6625	Mozilla Firefox < 17.0 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	2012/11/29	2019/3/6	high
6626	SeaMonkey 2.x < 2.14 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	2012/11/29	2019/3/6	high
801350	Mozilla Thunderbird 16.x <= 16 Multiple Vulnerabilities	Log Correlation Engine	SMTP Clients	2012/11/29		high
801327	Mozilla Firefox 16.x <= 16 Multiple Vulnerabilities	Log Correlation Engine	Web Clients	2012/11/29		high
801336	Mozilla SeaMonkey 2.x <= 2.13 Multiple Vulnerabilities	Log Correlation Engine	Web Clients	2012/11/29		high

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