CVE-2008-0017: Canonical Ubuntu Linux

High severity, CVSS 9.3. EPSS: 7.7% chance of exploitation in the next 30 days.

The http-index-format MIME type parser (nsDirIndexParser) in Firefox 3.x before 3.0.4, Firefox 2.x before 2.0.0.18, and SeaMonkey 1.x before 1.1.13 does not check for an allocation failure, which allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via an HTTP index response with a crafted 200 header, which triggers memory corruption and a buffer overflow.

Affected products

• Canonical Ubuntu Linux: version 6.06 only; version 7.10 only; version 8.04 only; version 8.10 only
• Debian Debian Linux: version 4.0 only; version 5.0 only
• Mozilla Firefox: from 2.0, before 2.0.0.18 (fixed in 2.0.0.18); from 3.0, before 3.0.4 (fixed in 3.0.4)
• Mozilla Seamonkey: from 1.0, before 1.1.13 (fixed in 1.1.13)

Published 2008-11-13. Last modified 2026-06-16.