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Mozilla Firefox JavaScript Engine Information Disclosure Vulnerability Advisory Available in Danish 

Secunia Advisory: SA14820  
Release Date: 2005-04-04
Last Update: 2005-04-16

Critical:
Moderately critical
Impact: Exposure of system information
Exposure of sensitive information
Where: From remote
Solution Status: Vendor Patch

Software:Mozilla Firefox 0.x
Mozilla Firefox 1.x

CVE reference:CVE-2005-0989 (Secunia mirror)

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Description:
A vulnerability has been discovered in Mozilla Firefox, which can be exploited by malicious people to gain knowledge of potentially sensitive information.

The vulnerability is caused due to an error in the JavaScript engine, as a "lambda" replace exposes arbitrary amounts of heap memory after the end of a JavaScript string.

Successful exploitation may disclose sensitive information in memory.

Secunia has constructed a test, which can be used to check if your browser is affected by this issue:
http://secunia.com/mozilla_products_arbitrary_memory_exposure_test/

The vulnerability has been confirmed in versions 1.0.1 and 1.0.2. Other versions may also be affected.

Do you have this product installed on your home computer? Scan using the free Personal Software Inspector. Check if a vulnerable version is installed on computers in your corporate network, using the Network Software Inspector.

Solution:
Update to version 1.0.3.
http://www.mozilla.org/products/firefox/

Provided and/or discovered by:
Azafran

Changelog:
2005-04-13: Added CVE reference.
2005-04-16: Updated "Solution" section.

Original Advisory:
The Mozilla Organization:
http://www.mozilla.org/security/announce/mfsa2005-33.html
https://bugzilla.mozilla.org/show_bug.cgi?id=288688

Azafran:
http://cubic.xfo.org.ru/index.cgi?read=53004



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

59 Related Secunia Security Advisories, displaying 10

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