CVE-2009-0652

firefox: does not properly prevent the literal rendering of homoglyph characters in IDN domain names (spoof URLs and conduct phishing attacks)

Published Feb 20, 2009 CVSS 2.0 · 5.8 Medium EPSS 1.5% KEV · Not listed
Description
The Internationalized Domain Names (IDN) blacklist in Mozilla Firefox 3.0.6 and other versions before 3.0.9; Thunderbird before 2.0.0.21; and SeaMonkey before 1.1.15 does not include box-drawing characters, which allows remote attackers to spoof URLs and conduct phishing attacks, as demonstrated by homoglyphs of the / (slash) and ? (question mark) characters in a subdomain of a .cn domain name, a different vulnerability than CVE-2005-0233. NOTE: some third parties claim that 3.0.6 is not affected, but much older versions perhaps are affected.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-1797-1 New xulrunner packages fix several vulnerabilities
Debian DSA Debian DSA DSA-1830-1 New icedove packages fix several vulnerabilities
EUVD EUVD EUVD-2009-0655 The Internationalized Domain Names (IDN) blacklist in Mozilla Firefox 3.0.6 and other versions before 3.0.9; Thunderbird before 2.0.0.21; and SeaMonkey before 1.1.15 does not include box-drawing characters, which allows remote attackers to spoof URLs and conduct phishing attacks, as demonstrated by homoglyphs of the / (slash) and ? (question mark) characters in a subdomain of a .cn domain name, a different vulnerability than CVE-2005-0233. NOTE: some third parties claim that 3.0.6 is not affected, but much older versions perhaps are affected.
Ubuntu USN Ubuntu USN USN-764-1 Firefox and Xulrunner vulnerabilities
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 7, 2024, 4:40 AM
Reserved
Feb 20, 2009, 12:00 AM
Status
Modified
Published
Feb 20, 2009, 7:30 PM
Modified
Jun 16, 2026, 11:05 PM
Severity
Moderate
Public date
Feb 16, 2009, 12:00 AM