CVE-2009-5017

MEDIUM

Description

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.

References

http://hg.mozilla.org/releases/mozilla-1.9.2/rev/e42c563313a0

http://sirdarckcat.blogspot.com/2009/10/couple-of-unicode-issues-on-php-and.html

https://bugzilla.mozilla.org/show_bug.cgi?id=511859

https://bugzilla.mozilla.org/show_bug.cgi?id=522634

Details

Source: MITRE

Published: 2010-11-12

Updated: 2010-12-01

Type: CWE-79

Risk Information

CVSS v2.0

Base Score: 4.3

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

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM