USN-2102-1 fixed vulnerabilities in Firefox. The update introduced a regression which could make Firefox crash under some circumstances.
This update fixes the problem.

We apologize for the inconvenience.

Christian Holler, Terrence Cole, Jesse Ruderman, Gary Kwong, Eric Rescorla, Jonathan Kew, Dan Gohman, Ryan VanderMeulen, Carsten Book, Andrew Sutherland, Byron Campen, Nicholas Nethercote, Paul Adenot, David Baron, Julian Seward and Sotaro Ikeda discovered multiple memory safety issues in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox.
(CVE-2014-1477, CVE-2014-1478)

Cody Crews discovered a method to bypass System Only Wrappers. An attacker could potentially exploit this to steal confidential data or execute code with the privileges of the user invoking Firefox. (CVE-2014-1479)

Jordi Chancel discovered that the downloads dialog did not implement a security timeout before button presses are processed. An attacker could potentially exploit this to conduct clickjacking attacks. (CVE-2014-1480)

Fredrik Lonnqvist discovered a use-after-free in Firefox.
An attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the priviliges of the user invoking Firefox.
(CVE-2014-1482)

Jordan Milne discovered a timing flaw when using document.elementFromPoint and document.caretPositionFromPoint on cross-origin iframes. An attacker could potentially exploit this to steal confidential imformation. (CVE-2014-1483)

Frederik Braun discovered that the CSP implementation in Firefox did not handle XSLT stylesheets in accordance with the specification, potentially resulting in unexpected script execution in some circumstances (CVE-2014-1485)

Arthur Gerkis discovered a use-after-free in Firefox. An attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the priviliges of the user invoking Firefox.
(CVE-2014-1486)

Masato Kinugawa discovered a cross-origin information leak in web worker error messages. An attacker could potentially exploit this to steal confidential information.
(CVE-2014-1487)

Yazan Tommalieh discovered that web pages could activate buttons on the default Firefox startpage (about:home) in some circumstances. An attacker could potentially exploit this to cause data loss by triggering a session restore.
(CVE-2014-1489)

Soeren Balko discovered a crash in Firefox when terminating web workers running asm.js code in some circumstances. An attacker could potentially exploit this to execute arbitrary code with the priviliges of the user invoking Firefox.
(CVE-2014-1488)

Several issues were discovered with ticket handling in NSS.
An attacker could potentially exploit these to cause a denial of service or bypass cryptographic protection mechanisms. (CVE-2014-1490, CVE-2014-1491)

Boris Zbarsky discovered that security restrictions on window objects could be bypassed under certain circumstances. (CVE-2014-1481).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The installed version of Firefox is earlier than 27.0 and is, therefore, potentially affected by multiple vulnerabilities :

  - Memory issues exist in the browser engine that could     result in a denial of service or arbitrary code     execution. (CVE-2014-1477, CVE-2014-1478)

  - An error exists related to System Only Wrappers (SOW)     and the XML Binding Language (XBL) that could allow     XUL content to be disclosed. (CVE-2014-1479)

  - An error exists related to the 'open file' dialog that     could allow users to take unintended actions.
    (CVE-2014-1480)

  - An error exists related to the JavaScript engine and     'window' object handling that has unspecified impact.
    (CVE-2014-1481)

  - An error exists related to 'RasterImage' and image     decoding that could allow application crashes and     possibly arbitrary code execution. (CVE-2014-1482)

  - Errors exist related to IFrames,     'document.caretPositionFromPoint' and     'document.elementFromPoint' that could allow cross-     origin information disclosure. (CVE-2014-1483)

  - An error exists related to the Content Security     Policy (CSP) and XSLT stylesheets that could allow     unintended script execution.  (CVE-2014-1485)

  - A use-after-free error exists related to image handling     and 'imgRequestProxy' that could allow application     crashes and possibly arbitrary code execution.
    (CVE-2014-1486)

  - An error exists related to 'web workers' that could     allow cross-origin information disclosure.
    (CVE-2014-1487)

  - An error exists related to 'web workers' and 'asm.js'     that could allow application crashes and possibly     arbitrary code execution. (CVE-2014-1488)

  - An error exists that could allow webpages to access     activate content from the 'about:home' page that     could lead to data loss. (CVE-2014-1489)

  - Network Security Services (NSS) contains a race     condition in libssl that occurs during session ticket     processing. A remote attacker can exploit this flaw     to cause a denial of service. (CVE-2014-1490)

  - Network Security Services (NSS) does not properly     restrict public values in Diffie-Hellman key exchanges,     allowing a remote attacker to bypass cryptographic     protection mechanisms. (CVE-2014-1491)

The installed version of Firefox is earlier than 27.0 and is, therefore, potentially affected by the following vulnerabilities :

  - Memory issues exist in the browser engine that could     result in a denial of service or arbitrary code     execution. (CVE-2014-1477, CVE-2014-1478)

  - An error exists related to System Only Wrappers (SOW)     and the XML Binding Language (XBL) that could allow     XUL content to be disclosed. (CVE-2014-1479)

  - An error exists related to the 'open file' dialog that     could allow users to take unintended actions.
    (CVE-2014-1480)

  - An error exists related to the JavaScript engine and     'window' object handling that has unspecified impact.
    (CVE-2014-1481)

  - An error exists related to 'RasterImage' and image     decoding that could allow application crashes and     possibly arbitrary code execution. (CVE-2014-1482)

  - Errors exist related to IFrames,     'document.caretPositionFromPoint' and     'document.elementFromPoint' that could allow cross-     origin information disclosure. (CVE-2014-1483)

  - An error exists related to the Content Security     Policy (CSP) and XSLT stylesheets that could allow     unintended script execution.  (CVE-2014-1485)

  - A use-after-free error exists related to image handling     and 'imgRequestProxy' that could allow application     crashes and possibly arbitrary code execution.
    (CVE-2014-1486)

  - An error exists related to 'web workers' that could     allow cross-origin information disclosure.
    (CVE-2014-1487)

  - An error exists related to 'web workers' and 'asm.js'     that could allow application crashes and possibly     arbitrary code execution. (CVE-2014-1488)

  - An error exists that could allow webpages to access     activate content from the 'about:home' page that     could lead to data loss. (CVE-2014-1489)

  - Network Security Services (NSS) contains a race     condition in libssl that occurs during session ticket     processing. A remote attacker can exploit this flaw     to cause a denial of service. (CVE-2014-1490)

  - Network Security Services (NSS) does not properly     restrict public values in Diffie-Hellman key exchanges,     allowing a remote attacker to bypass cryptographic     protection mechanisms. (CVE-2014-1491)

The Mozilla Project reports :

MFSA 2014-01 Miscellaneous memory safety hazards (rv:27.0 / rv:24.3)

MFSA 2014-02 Clone protected content with XBL scopes

MFSA 2014-03 UI selection timeout missing on download prompts

MFSA 2014-04 Incorrect use of discarded images by RasterImage

MFSA 2014-05 Information disclosure with *FromPoint on iframes

MFSA 2014-06 Profile path leaks to Android system log

MFSA 2014-07 XSLT stylesheets treated as styles in Content Security Policy

MFSA 2014-08 Use-after-free with imgRequestProxy and image proccessing

MFSA 2014-09 Cross-origin information leak through web workers

MFSA 2014-10 Firefox default start page UI content invokable by script

MFSA 2014-11 Crash when using web workers with asm.js

MFSA 2014-12 NSS ticket handling issues

MFSA 2014-13 Inconsistent JavaScript handling of access to Window objects

This updates the Mozilla Firefox browser to the 24.3.0ESR security release. The Mozilla NSS libraries are now on version 3.15.4.

The following security issues have been fixed :

  - Memory safety bugs fixed in Firefox ESR 24.3 and Firefox     27.0 (CVE-2014-1477)(bnc#862345). (MFSA 2014-01)

  - Using XBL scopes its possible to steal(clone) native     anonymous content (CVE-2014-1479)(bnc#862348). (MFSA     2014-02)

  - Download 'open file' dialog delay is too quick, doesn't     prevent clickjacking. (CVE-2014-1480). (MFSA 2014-03)

  - Image decoding causing FireFox to crash with Goo Create     (CVE-2014-1482)(bnc#862356). (MFSA 2014-04)

  - caretPositionFromPoint and elementFromPoint leak     information about iframe contents via timing information     (CVE-2014-1483)(bnc#862360). (MFSA 2014-05)

  - Fennec leaks profile path to logcat. (CVE-2014-1484).
    (MFSA 2014-06)

  - CSP should block XSLT as script, not as style.
    (CVE-2014-1485). (MFSA 2014-07)

  - imgRequestProxy Use-After-Free Remote Code Execution     Vulnerability. (CVE-2014-1486). (MFSA 2014-08)

  - Cross-origin information disclosure with error message     of Web Workers. (CVE-2014-1487). (MFSA 2014-09)

  - settings &amp; history ID bug. (CVE-2014-1489). (MFSA     2014-10)

  - Firefox reproducibly crashes when using asm.js code in     workers and transferable objects. (CVE-2014-1488). (MFSA     2014-11)

  - TOCTOU, potential use-after-free in libssl's session     ticket processing (CVE-2014-1490)(bnc#862300) Do not     allow p-1 as a public DH value     (CVE-2014-1491)(bnc#862289). (MFSA 2014-12)

  - Inconsistent this value when invoking getters on window     (CVE-2014-1481)(bnc#862309). (MFSA 2014-13)

The remote host is affected by the vulnerability described in GLSA-201504-01 (Mozilla Products: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in Firefox, Thunderbird,       and SeaMonkey. Please review the CVE identifiers referenced below for       details.
  Impact :

    A remote attacker could entice a user to view a specially crafted web       page or email, possibly resulting in execution of arbitrary code or a       Denial of Service condition. Furthermore, a remote attacker may be able       to perform Man-in-the-Middle attacks, obtain sensitive information, spoof       the address bar, conduct clickjacking attacks, bypass security       restrictions and protection mechanisms,  or have other unspecified       impact.
  Workaround :

    There are no known workarounds at this time.

Mozilla Firefox was updated to version 27. Mozilla SeaMonkey was updated to 2.24, fixing similar issues as Firefox 27. Mozilla Thunderbird was updated to 24.3.0, fixing similar issues as Firefox 27.

The Firefox 27 release brings TLS 1.2 support as a major security feature.

It also fixes following security issues :

  - MFSA 2014-01/CVE-2014-1477/CVE-2014-1478 Miscellaneous     memory safety hazards (rv:27.0 / rv:24.3)

  - MFSA 2014-02/CVE-2014-1479 (bmo#911864) Clone protected     content with XBL scopes

  - MFSA 2014-03/CVE-2014-1480 (bmo#916726) UI selection     timeout missing on download prompts

  - MFSA 2014-04/CVE-2014-1482 (bmo#943803) Incorrect use of     discarded images by RasterImage

  - MFSA 2014-05/CVE-2014-1483 (bmo#950427) Information     disclosure with *FromPoint on iframes

  - MFSA 2014-06/CVE-2014-1484 (bmo#953993) Profile path     leaks to Android system log

  - MFSA 2014-07/CVE-2014-1485 (bmo#910139) XSLT stylesheets     treated as styles in Content Security Policy

  - MFSA 2014-08/CVE-2014-1486 (bmo#942164) Use-after-free     with imgRequestProxy and image proccessing

  - MFSA 2014-09/CVE-2014-1487 (bmo#947592) Cross-origin     information leak through web workers

  - MFSA 2014-10/CVE-2014-1489 (bmo#959531) Firefox default     start page UI content invokable by script

  - MFSA 2014-11/CVE-2014-1488 (bmo#950604) Crash when using     web workers with asm.js

  - MFSA 2014-12/CVE-2014-1490/CVE-2014-1491 (bmo#934545,     bmo#930874, bmo#930857) NSS ticket handling issues

  - MFSA 2014-13/CVE-2014-1481(bmo#936056) Inconsistent     JavaScript handling of access to Window objects

Mozilla NSS was updated to 3.15.4 :

  - required for Firefox 27

  - regular CA root store update (1.96)

  - Reordered the cipher suites offered in SSL/TLS client     hello messages to match modern best practices.

  - Improved SSL/TLS false start. In addition to enabling     the SSL_ENABLE_FALSE_START option, an application must     now register a callback using the     SSL_SetCanFalseStartCallback function.

  - When false start is enabled, libssl will sometimes     return unencrypted, unauthenticated data from PR_Recv     (CVE-2013-1740, bmo#919877)

  - MFSA 2014-12/CVE-2014-1490/CVE-2014-1491 NSS ticket     handling issues New functionality

  - Implemented OCSP querying using the HTTP GET method,     which is the new default, and will fall back to the HTTP     POST method.

  - Implemented OCSP server functionality for testing     purposes (httpserv utility).

  - Support SHA-1 signatures with TLS 1.2 client     authentication.

  - Added the --empty-password command-line option to     certutil, to be used with -N: use an empty password when     creating a new database.

  - Added the -w command-line option to pp: don't wrap long     output lines.

Christian Holler, Terrence Cole, Jesse Ruderman, Gary Kwong, Eric Rescorla, Jonathan Kew, Dan Gohman, Ryan VanderMeulen, Carsten Book, Andrew Sutherland, Byron Campen, Nicholas Nethercote, Paul Adenot, David Baron, Julian Seward and Sotaro Ikeda discovered multiple memory safety issues in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox.
(CVE-2014-1477, CVE-2014-1478)

Cody Crews discovered a method to bypass System Only Wrappers. An attacker could potentially exploit this to steal confidential data or execute code with the privileges of the user invoking Firefox.
(CVE-2014-1479)

Jordi Chancel discovered that the downloads dialog did not implement a security timeout before button presses are processed. An attacker could potentially exploit this to conduct clickjacking attacks.
(CVE-2014-1480)

Fredrik Lonnqvist discovered a use-after-free in Firefox. An attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the priviliges of the user invoking Firefox. (CVE-2014-1482)

Jordan Milne discovered a timing flaw when using document.elementFromPoint and document.caretPositionFromPoint on cross-origin iframes. An attacker could potentially exploit this to steal confidential imformation. (CVE-2014-1483)

Frederik Braun discovered that the CSP implementation in Firefox did not handle XSLT stylesheets in accordance with the specification, potentially resulting in unexpected script execution in some circumstances (CVE-2014-1485)

Arthur Gerkis discovered a use-after-free in Firefox. An attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the priviliges of the user invoking Firefox. (CVE-2014-1486)

Masato Kinugawa discovered a cross-origin information leak in web worker error messages. An attacker could potentially exploit this to steal confidential information. (CVE-2014-1487)

Yazan Tommalieh discovered that web pages could activate buttons on the default Firefox startpage (about:home) in some circumstances. An attacker could potentially exploit this to cause data loss by triggering a session restore. (CVE-2014-1489)

Soeren Balko discovered a crash in Firefox when terminating web workers running asm.js code in some circumstances. An attacker could potentially exploit this to execute arbitrary code with the priviliges of the user invoking Firefox. (CVE-2014-1488)

Several issues were discovered with ticket handling in NSS. An attacker could potentially exploit these to cause a denial of service or bypass cryptographic protection mechanisms. (CVE-2014-1490, CVE-2014-1491)

Boris Zbarsky discovered that security restrictions on window objects could be bypassed under certain circumstances. (CVE-2014-1481).

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.

Versions of Mozilla Firefox ESR prior to 24.3 are prone to the following vulnerabilities :

 - Memory issues exist in the browser engine that could result in a denial of service or arbitrary code execution. (CVE-2014-1477, CVE-2014-1478)
 - An error exists related to System Only Wrappers (SOW) and the XML Binding Language (XBL) that could allow XUL content to be disclosed. (CVE-2014-1479)
 - An error exists related to the 'open file' dialog that could allow users to take unintended actions. (CVE-2014-1480)
 - An error exists related to the JavaScript engine and 'window' object handling that has unspecified impact. (CVE-2014-1481)
 - An error exists related to 'RasterImage' and image decoding that could allow application crashes and possibly arbitrary code execution. (CVE-2014-1482)
 - Errors exist related to IFrames, 'document.caretPositionFromPoint' and 'document.elementFromPoint' that could allow cross-origin information disclosure. (CVE-2014-1483)
 - An error exists related to the Content Security Policy (CSP) and XSLT stylesheets that could allow unintended script execution. (CVE-2014-1485)
 - A use-after-free error exists related to image handling and 'imgRequestProxy' that could allow application crashes and possibly arbitrary code execution. (CVE-2014-1486)
 - An error exists related to 'web workers' that could allow cross-origin information disclosure. (CVE-2014-1487)
 - An error exists related to 'web workers' and 'asm.js' that could allow application crashes and possibly arbitrary code execution. (CVE-2014-1488)
 - An error exists that could allow webpages to access activate content from the 'about:home' page that could lead to data loss. (CVE-2014-1489)
 - Errors exist related to the included Network Security Services (NSS) libraries, 'NewSessionTicket' handshakes and public Diffie-Hellman values that could allow application crashes and possibly arbitrary code execution. (CVE-2014-1490, CVE-2014-1491)

Versions of Mozilla Firefox earlier than 27.0 are prone to the following vulnerabilities :

 - Memory issues exist in the browser engine that could result in a denial of service or arbitrary code execution. (CVE-2014-1477, CVE-2014-1478)
 - An error exists related to System Only Wrappers (SOW) and the XML Binding Language (XBL) that could allow XUL content to be disclosed. (CVE-2014-1479)
 - An error exists related to the 'open file' dialog that could allow users to take unintended actions. (CVE-2014-1480)
 - An error exists related to the JavaScript engine and 'window' object handling that has unspecified impact. (CVE-2014-1481)
 - An error exists related to 'RasterImage' and image decoding that could allow application crashes and possibly arbitrary code execution. (CVE-2014-1482)
 - Errors exist related to IFrames, 'document.caretPositionFromPoint' and 'document.elementFromPoint' that could allow cross-origin information disclosure. (CVE-2014-1483)
 - An error exists related to the Content Security Policy (CSP) and XSLT stylesheets that could allow unintended script execution. (CVE-2014-1485)
 - A use-after-free error exists related to image handling and 'imgRequestProxy' that could allow application crashes and possibly arbitrary code execution. (CVE-2014-1486)
 - An error exists related to 'web workers' that could allow cross-origin information disclosure. (CVE-2014-1487)
 - An error exists related to 'web workers' and 'asm.js' that could allow application crashes and possibly arbitrary code execution. (CVE-2014-1488)
 - An error exists that could allow webpages to access activate content from the 'about:home' page that could lead to data loss. (CVE-2014-1489)
 - Errors exist related to the included Network Security Services (NSS) libraries, 'NewSessionTicket' handshakes and public Diffie-Hellman values that could allow application crashes and possibly arbitrary code execution. (CVE-2014-1490, CVE-2014-1491)

ID	Name	Product	Family	Published	Updated	Severity
72598	Ubuntu 12.04 LTS / 12.10 / 13.10 : firefox regression (USN-2102-2)	Nessus	Ubuntu Local Security Checks	2/20/2014	1/19/2021	critical
72328	Firefox < 27.0 Multiple Vulnerabilities (Mac OS X)	Nessus	MacOS X Local Security Checks	2/5/2014	11/26/2019	critical
72331	Firefox < 27.0 Multiple Vulnerabilities	Nessus	Windows	2/5/2014	11/26/2019	critical
72312	FreeBSD : mozilla -- multiple vulnerabilities (1753f0ff-8dd5-11e3-9b45-b4b52fce4ce8)	Nessus	FreeBSD Local Security Checks	2/5/2014	1/6/2021	critical
72554	SuSE 11.3 Security Update : MozillaFirefox (SAT Patch Number 8879)	Nessus	SuSE Local Security Checks	2/18/2014	1/19/2021	critical
82632	GLSA-201504-01 : Mozilla Products: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	4/8/2015	1/11/2021	critical
75253	openSUSE Security Update : firefox / seamonkey / thunderbird (openSUSE-SU-2014:0212-1)	Nessus	SuSE Local Security Checks	6/13/2014	1/19/2021	critical
72425	Ubuntu 12.04 LTS / 12.10 / 13.10 : firefox vulnerabilities (USN-2102-1)	Nessus	Ubuntu Local Security Checks	2/11/2014	1/19/2021	critical
701242	Mozilla Firefox ESR < 24.3 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	11/6/2019	11/6/2019	high
8098	Mozilla Firefox < 27.0 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	2/5/2014	11/6/2019	high

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