Vulnerability Monitor

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CVE-2009-5017

Mozilla Firefox before 3.6 Beta 3 does not properly handle overlong UTF-8 encoding, which makes it easier for remote attackers to bypass cross-site scripting (XSS) protection mechanisms via a crafted string, a different vulnerability than CVE-2010-1210.

Published

2010-11-12T22:00:01.923

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 4.3 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:P/A:N

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
CWE-79

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mozilla	firefox	≤ 3.6	Yes
Application	mozilla	firefox	3.6	Yes

References

http://hg.mozilla.org/releases/mozilla-1.9.2/rev/e42c563313a0 ([email protected])
http://sirdarckcat.blogspot.com/2009/10/couple-of-unicode-issues-on-php-and.html Exploit ([email protected])
https://bugzilla.mozilla.org/show_bug.cgi?id=511859 Patch ([email protected])
https://bugzilla.mozilla.org/show_bug.cgi?id=522634 ([email protected])
http://hg.mozilla.org/releases/mozilla-1.9.2/rev/e42c563313a0 (af854a3a-2127-422b-91ae-364da2661108)
http://sirdarckcat.blogspot.com/2009/10/couple-of-unicode-issues-on-php-and.html Exploit (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.mozilla.org/show_bug.cgi?id=511859 Patch (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.mozilla.org/show_bug.cgi?id=522634 (af854a3a-2127-422b-91ae-364da2661108)