Firefox < 33.0 Multiple Vulnerabilities

High Nessus Plugin ID 78473

New! Vulnerability Priority Rating (VPR)

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VPR Score: 5.9


The remote Windows host contains a web browser that is affected by multiple vulnerabilities.


The version of Firefox installed on the remote Windows host is a version prior to 33.0. It is, therefore, affected by the following vulnerabilities :

- Multiple memory safety flaws exist within the browser engine. Exploiting these, an attacker can cause a denial of service or execute arbitrary code. (CVE-2014-1574, CVE-2014-1575)

- A buffer overflow vulnerability exists when capitalization style changes occur during CSS parsing.

- An out-of-bounds read error exists in the Web Audio component when invalid values are used in custom waveforms that leads to a denial of service or information disclosure. (CVE-2014-1577)

- An out-of-bounds write error exists when processing invalid tile sizes in 'WebM' format videos that result in arbitrary code execution. (CVE-2014-1578)

- Memory is not properly initialized during GIF rendering within a '<canvas>' element. Using a specially crafted web script, a remote attacker can exploit this to acquire sensitive information from the process memory.

- A use-after-free error exists in the 'DirectionalityUtils' component when text direction is used in the text layout that results in arbitrary code execution. (CVE-2014-1581)

- Multiple security bypass vulnerabilities exist related to key pinning, a method to prevent man-in-the-middle attacks by verifying certificates. An attacker can use SPDY or HTTP/2 connection coalescing to bypass key pinning on websites that use a domain name that resolve to the same IP address. Another issue exists in which key pinning verification is not performed due to an issue verifying the issuer of an SSL certificate. These issues could result in man-in-the-middle attacks. Note that key pinning was introduced in Firefox 32.
(CVE-2014-1582, CVE-2014-1584)

- An error exists that could allow a malicious app to use 'AlarmAPI' to read cross-origin references and possibly allow for the same-origin policy to be bypassed.

- Multiple issues exist in WebRTC when the session is running within an 'iframe' element that will allow the session to be accessible even when sharing is stopped and when returning to the website. This could lead to video inadvertently being shared. (CVE-2014-1585, CVE-2014-1586)


Upgrade to Firefox 33.0 or later.

See Also

Plugin Details

Severity: High

ID: 78473

File Name: mozilla_firefox_33.nasl

Version: 1.8

Type: local

Agent: windows

Family: Windows

Published: 2014/10/15

Updated: 2019/11/25

Dependencies: 20862

Risk Information

Risk Factor: High

VPR Score: 5.9

CVSS Score Source: CVE-2014-1581

CVSS v2.0

Base Score: 7.5

Temporal Score: 5.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:POC/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/a:mozilla:firefox

Required KB Items: Mozilla/Firefox/Version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2014/10/14

Vulnerability Publication Date: 2014/10/14

Reference Information

CVE: CVE-2014-1574, CVE-2014-1575, CVE-2014-1576, CVE-2014-1577, CVE-2014-1578, CVE-2014-1580, CVE-2014-1581, CVE-2014-1582, CVE-2014-1583, CVE-2014-1584, CVE-2014-1585, CVE-2014-1586

BID: 70424, 70425, 70426, 70427, 70428, 70430, 70431, 70432, 70434, 70436, 70439, 70440