The WebGL implementation in Mozilla Firefox before 24.0, when NVIDIA graphics drivers are used on Mac OS X, allows remote attackers to obtain desktop-screenshot data by reading from a CANVAS element.

The Mozilla Project reports :

MFSA 2013-76 Miscellaneous memory safety hazards (rv:24.0 / rv:17.0.9)

MFSA 2013-77 Improper state in HTML5 Tree Builder with templates

MFSA 2013-78 Integer overflow in ANGLE library

MFSA 2013-79 Use-after-free in Animation Manager during stylesheet cloning

MFSA 2013-80 NativeKey continues handling key messages after widget is destroyed

MFSA 2013-81 Use-after-free with select element

MFSA 2013-82 Calling scope for new JavaScript objects can lead to memory corruption

MFSA 2013-83 Mozilla Updater does not lock MAR file after signature verification

MFSA 2013-84 Same-origin bypass through symbolic links

MFSA 2013-85 Uninitialized data in IonMonkey

MFSA 2013-86 WebGL Information disclosure through OS X NVIDIA graphic drivers

MFSA 2013-87 Shared object library loading from writable location

MFSA 2013-88 compartment mismatch re-attaching XBL-backed nodes

MFSA 2013-89 Buffer overflow with multi-column, lists, and floats

MFSA 2013-90 Memory corruption involving scrolling

MFSA 2013-91 User-defined properties on DOM proxies get the wrong 'this' object

MFSA 2013-92 GC hazard with default compartments and frame chain restoration

Upstream security update.

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

Upstream update.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora 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 24.0 and is, therefore, potentially affected by multiple vulnerabilities :

  - Memory issues exist in the browser engine that could     allow for denial of service or arbitrary code execution.
    (CVE-2013-1718, CVE-2013-1719)

  - The HTML5 Tree Builder does not properly maintain     states, which could result in a denial of service or     possible arbitrary code execution.  (CVE-2013-1720)

  - The ANGLE library is vulnerable to an integer overflow,     which could result in a denial of service or arbitrary     code execution. (CVE-2013-1721)

  - Multiple use-after-free problems exist, which could     result in denial of service attacks or arbitrary code     execution. (CVE-2013-1722, CVE-2013-1724,     CVE-2013-1735, CVE-2013-1736, CVE-2013-1738)

  - The NativeKey widget does not properly terminate key     messages, possibly leading to a denial of service attack.
    (CVE-2013-1723)

  - Incorrect scope handling for JavaScript objects with     compartments can result in denial of service or possibly     arbitrary code execution. (CVE-2013-1725)

  - Local users can gain the same privileges as the Mozilla     Updater because the application does not ensure     exclusive access to the update file. An attacker can     exploit this by inserting a malicious file into the     update file. (CVE-2013-1726)

  - Sensitive information can be obtained via unspecified     vectors because the IonMonkey JavaScript does not     properly initialize memory. (CVE-2013-1728)

  - A JavaScript compartment mismatch can result in a denial     of service or arbitrary code execution.  Versions of     Firefox 20 or greater are not susceptible to the     arbitrary code execution mentioned above.
    (CVE-2013-1730)

  - A buffer overflow is possible because of an issue with     multi-column layouts. (CVE-2013-1732)

  - An object is not properly identified during use of     user-defined getter methods on DOM proxies.  This can     result in access restrictions being bypassed.
    (CVE-2013-1737)

  - An issue in the NVIDIA OS X graphic drivers allows the     user's desktop to be viewed by web content, potentially     exposing sensitive information. (CVE-2013-1729)

Versions of Mozilla Firefox earlier than version 24.0 are prone to the following vulnerabilities :

 - use-after-free vulnerability in the Garbage Collector could allow a remote attacker to execute arbitrary code in the context of the user. (CVE-2013-1738)
 - user-defined getters on DOM proxies would incorrectly get the expando object when accessing the "this" object, which may not be directly exploitable but could lead to incorrect security sensitive decisions. (CVE-2013-1737)
 - Combining lists, floats, and multiple columns in a layout could trigger a potentially exploitable buffer overflow. (CVE-2013-1732)
 - Compartment mismatch when moving XBL-backed nodes into a new document can lead cause a crash (CVE-2013-1730)
 - flaw in the NVIDIA OS X graphic drivers would allow portions of a user's desktop or other visible applications to be incorporated into WebGL canvases, leading to potential information disclosure (CVE-2013-1729)
 - uninitialized data and variables in the IonMonkey Javascript engine can be used with additional exploits to allow access to previously allocated memory (CVE-2013-1728)
 - Same-origin bypass through symbolic links can allow for cross-site scripting and access to locally stored Firefox containing sensitive user data (CVE-2013-1727)
 - the MAR update file is not write-locked when used by the Mozilla Updater, which can allow the altering of the MAR file content after its signature has been checked but before it has been used. (CVE-2013-1726)
 - Calling scope for new Javascript objects with compartments can lead to memory corruption (CVE-2013-1725)
 - A use-after-free vulnerability via the <select> element could lead to a potentially exploitable crash (CVE-2013-1724)
 - the NativeKey widget continues handling key messages even when it is destroyed by dispatched event listeners, which can lead to an unexploitable crash (CVE-2013-1723)
 - Use-after-free in Animation Manager during stylesheet cloning can lead to a potentially exploitable crash (CVE-2013-1722)
 - An integer overflow in the Almost Native Graphics Layer Engine (ANGLE) can lead to a potentially exploitable crash (CVE-2013-1721)
 - Incorrectly stored stack information in the HTML5 Tree Builder can lead to code execution (CVE-2013-1720)  - Various memory corruption vulnerabilities (CVE-2013-1735, CVE-2013-1736, CVE-2013-1718, CVE-2013-1719)

ID	Name	Product	Family	Severity
70262	FreeBSD : mozilla -- multiple vulnerabilities (7dfed67b-20aa-11e3-b8d8-0025905a4771)	Nessus	FreeBSD Local Security Checks	critical
70205	Fedora 18 : firefox-24.0-1.fc18 / xulrunner-24.0-2.fc18 (2013-17047)	Nessus	Fedora Local Security Checks	critical
70062	Fedora 20 : firefox-24.0-1.fc20 / xulrunner-24.0-2.fc20 (2013-17074)	Nessus	Fedora Local Security Checks	critical
70036	Fedora 19 : firefox-24.0-1.fc19 / xulrunner-24.0-2.fc19 (2013-16992)	Nessus	Fedora Local Security Checks	critical
69989	Firefox < 24.0 Multiple Vulnerabilities (Mac OS X)	Nessus	MacOS X Local Security Checks	critical
8010	Mozilla Firefox < 24.0 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	high

Detections

Analytics

CVE-2013-1729

high

Tenable Plugins

critical

critical

critical

critical

critical

high