CVE-2009-3376

Firefox download filename spoofing with RTL override

Published Oct 29, 2009 CVSS 2.0 · 9.3 Critical EPSS 3.2% KEV · Not listed
Description
Mozilla Firefox before 3.0.15 and 3.5.x before 3.5.4, and SeaMonkey before 2.0, does not properly handle a right-to-left override (aka RLO or U+202E) Unicode character in a download filename, which allows remote attackers to spoof file extensions via a crafted filename, as demonstrated by displaying a non-executable extension for an executable file.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-1922-1 New xulrunner packages fix several vulnerabilities
EUVD EUVD EUVD-2009-3358 Mozilla Firefox before 3.0.15 and 3.5.x before 3.5.4, and SeaMonkey before 2.0, does not properly handle a right-to-left override (aka RLO or U+202E) Unicode character in a download filename, which allows remote attackers to spoof file extensions via a crafted filename, as demonstrated by displaying a non-executable extension for an executable file.
Ubuntu USN Ubuntu USN USN-853-1 Firefox and Xulrunner vulnerabilities
Ubuntu USN Ubuntu USN USN-915-1 Thunderbird vulnerabilities
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 7, 2024, 6:22 AM
Reserved
Sep 24, 2009, 12:00 AM
Status
Modified
Published
Oct 29, 2009, 2:30 PM
Modified
Jun 16, 2026, 11:11 PM
Severity
Low
Public date
Oct 27, 2009, 12:00 AM