CVE-2008-4067: Canonical Ubuntu Linux

Medium severity, CVSS 4.3. EPSS: 4.4% chance of exploitation in the next 30 days.

Directory traversal vulnerability in Mozilla Firefox before 2.0.0.17 and 3.x before 3.0.2, Thunderbird before 2.0.0.17, and SeaMonkey before 1.1.12 on Linux allows remote attackers to read arbitrary files via a .. (dot dot) and URL-encoded / (slash) characters in a resource: URI.

Affected products

• Canonical Ubuntu Linux: version 6.06 only; version 7.04 only; version 7.10 only; version 8.04 only
• Debian Debian Linux: version 4.0 only
• Mozilla Firefox: before 2.0.0.17 (fixed in 2.0.0.17); from 3.0, before 3.0.2 (fixed in 3.0.2)
• Mozilla Seamonkey: before 1.1.12 (fixed in 1.1.12)
• Mozilla Thunderbird: before 2.0.0.17 (fixed in 2.0.0.17)

Published 2008-09-24. Last modified 2026-06-16.