CVE-2009-5017

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Summary

CVECVE-2009-5017
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2010-11-12 22:00:01 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionMozilla 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.

Risk And Classification

Primary CVSS: v2.0 4.3 from [email protected]

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

Problem Types: CWE-79 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Mozilla Firefox 3.6 beta1 All All
Application Mozilla Firefox All beta2 All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
mozilla-1.9.2: changeset 32906:e42c563313a0934fdd6876b1b5ccf52315e4f000 af854a3a-2127-422b-91ae-364da2661108 hg.mozilla.org
511859 – Utf8ToOneUcs4Char in jsstr.cpp ,overlong UTF-8 seqence detection problem. af854a3a-2127-422b-91ae-364da2661108 bugzilla.mozilla.org Patch
522634 – decodeURIComponent/decodeURI allows non-shortest form of 16 bits char on 4 bytes representation af854a3a-2127-422b-91ae-364da2661108 bugzilla.mozilla.org
sirdarckcat: A couple of unicode issues on PHP and Firefox af854a3a-2127-422b-91ae-364da2661108 sirdarckcat.blogspot.com Exploit
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