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TITLE:
Mozilla Firefox Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA46203

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/46203/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=46203

RELEASE DATE:
2011-09-28

DISCUSS ADVISORY:
http://secunia.com/advisories/46203/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/46203/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=46203

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

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

1) Some unspecified errors can be exploited to corrupt memory. No
further information is currently available.

2) An integer underflow error exists within the Regular Expression
engine when evaluating certain regular expressions.

3) An error in the implementation of the "window.location" JavaScript
object can be exploited to bypass the same-origin policy.

For more information see vulnerability #2 in:
SA46171

4) A malicious application or extension could be downloaded and
executed if a user is convinced into holding down the "Enter" key via
e.g. a malicious game.

NOTE: Additionally, a weakness exists when handling the "Location"
header, which can lead to response splitting attacks when visiting a
vulnerable web server.

The vulnerabilities are reported in versions prior to 3.6.23.

SOLUTION:
Update to version 3.6.23.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits:
1) Benjamin Smedberg, Bob Clary, Jesse Ruderman, and Josh Aas.
2) Mark Kaplan
3) Boris Zbarsky
4) Mariusz Mlynski

ORIGINAL ADVISORY:
http://www.mozilla.org/security/announce/2011/mfsa2011-36.html
http://www.mozilla.org/security/announce/2011/mfsa2011-37.html
http://www.mozilla.org/security/announce/2011/mfsa2011-38.html
http://www.mozilla.org/security/announce/2011/mfsa2011-39.html
http://www.mozilla.org/security/announce/2011/mfsa2011-40.html

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

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Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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