What’s Vulnerable › Vulnerabilities

CVE-2005-4351

• Severity: medium (CVSS 4.3 v2.0)
• 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: yes
• Published: 2005-12-31 · updated 2026-06-16

Description

The securelevels implementation in FreeBSD 7.0 and earlier, OpenBSD up to 3.8, DragonFly up to 1.2, and Linux up to 2.6.15 allows root users to bypass immutable settings for files by mounting another filesystem that masks the immutable files while the system is running.

Affected products

• Dragonfly: through 1.2
• FreeBSD: through 6.0; 7.0-current
• Linux kernel: through 2.6.15
• OpenBSD: through 3.8

References

• http://archives.neohapsis.com/archives/openbsd/2005-10/1523.html
• http://lists.grok.org.uk/pipermail/full-disclosure/2006-January/041177.html
• http://www.redteam-pentesting.de/advisories/rt-sa-2005-015.txt
• http://www.redteam-pentesting.de/advisories/rt-sa-2005-15.txt
• https://exchange.xforce.ibmcloud.com/vulnerabilities/24037
• http://archives.neohapsis.com/archives/openbsd/2005-10/1523.html
• http://lists.grok.org.uk/pipermail/full-disclosure/2006-January/041177.html
• http://www.redteam-pentesting.de/advisories/rt-sa-2005-015.txt
• http://www.redteam-pentesting.de/advisories/rt-sa-2005-15.txt
• https://exchange.xforce.ibmcloud.com/vulnerabilities/24037

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