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Insecure Library Loading
Highly critical

Mozilla Firefox Three Vulnerabilities

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Release Date:  2005-03-24    Last Update:  2005-03-31    Views:  48,192

Secunia Advisory SA14654

Where:

From remote

Impact:

Security Bypass, System access

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Three vulnerabilities have been reported in Firefox, which can be exploited by malicious people to bypass certain security restrictions and compromise a user's system.

1) An error in the restriction of privileged XUL files can e.g. be exploited to open a local privileged XUL file by tricking a user into dragging a faked scrollbar.

The vulnerability itself does not pose any direct security risk as no XUL files in the product use external parameters in an insecure way nor do any destructive actions when being opened.

2) A web site added as a sidebar panel can load privileged content, which can be exploited to execute arbitrary programs by injecting JavaScript into a privileged URL.

3) A boundary error in the GIF image processing of Netscape extension 2 blocks can be exploited to cause a heap-based buffer overflow via a specially crafted image.

Successful exploitation may allow execution of arbitrary code.

The vulnerabilities have been reported in versions prior to 1.0.2.


Solution:
Update to version 1.0.2.

Further details available to Secunia VIM customers

Provided and/or discovered by:
1) Michael Krax
2) Kohei Yoshino
3) Mark Dowd, ISS X-Force

Original Advisory:
1) Mozilla:
http://www.mozilla.org/security/announce/mfsa2005-32.html

2) Mozilla:
http://www.mozilla.org/security/announce/mfsa2005-31.html

3) Mozilla:
http://www.mozilla.org/security/announce/mfsa2005-30.html

ISS:
http://xforce.iss.net/xforce/alerts/id/191

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Mozilla Firefox Three Vulnerabilities

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