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.
Published: 2009-10-29
Score: 9.3 Critical
EPSS: 3.0% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

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.

Subscriptions

Mozilla Firefox Seamonkey
Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-07T06:22:24.510Z

Reserved: 2009-09-24T00:00:00.000Z

Link: CVE-2009-3376

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2009-10-29T14:30:00.983

Modified: 2026-04-23T00:35:47.467

Link: CVE-2009-3376

cve-icon Redhat

Severity : Low

Publid Date: 2009-10-27T00:00:00Z

Links: CVE-2009-3376 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses