What’s Vulnerable › Vulnerabilities

CVE-2004-1901

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2004-12-31 · updated 2026-06-16
• Weakness: CWE-59

Description

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: 1.4, 1.4-rc1, 1.4-rc2
• gentoo Portage: before 2.0.50; 2.0.50 — fixed in 2.0.50

How to fix

Upgrade to a fixed version: gentoo Portage 2.0.50. Check the vendor advisory for mitigations.

References

• http://secunia.com/advisories/11305
• http://security.gentoo.org/glsa/glsa-200404-01.xml
• http://www.securityfocus.com/bid/10060
• https://exchange.xforce.ibmcloud.com/vulnerabilities/15754
• http://secunia.com/advisories/11305
• http://security.gentoo.org/glsa/glsa-200404-01.xml
• http://www.securityfocus.com/bid/10060
• https://exchange.xforce.ibmcloud.com/vulnerabilities/15754

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