CVE-2004-1901: Gentoo Linux

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Portage before 2.0.50-r3 allows local users to overwrite arbitrary files via a hard link attack on the lockfiles.

Affected products

• Gentoo Linux: version 1.4 only
• Gentoo Portage: before 2.0.50 (fixed in 2.0.50); version 2.0.50 only

Published 2004-12-31. Last modified 2026-06-16.