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6.2

CerbNG for FreeBSD 4.8 may let local users affect memory protection

CVE-2007-4304 · published 19 years ago
Summary

The CerbNG version for FreeBSD 4.8 does not correctly enforce write protection on certain memory pages. This mistake could let someone with local access manipulate those pages, potentially impacting system stability or data integrity. Update to a version that fixes the protection logic or apply the vendor’s recommended patch.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
cerb cerbng 0.1
0.2
0.3
0.4
cpe:2.3:a:cerb:cerbng:0.1:*:freebsd:*:*:*:*:*
Original advisory text
CerbNG for FreeBSD 4.8 does not properly implement VM protection when attempting to prevent system call wrapper races, which allows local users to have an unknown impact related to an "incorrect wr...
CerbNG for FreeBSD 4.8 does not properly implement VM protection when attempting to prevent system call wrapper races, which allows local users to have an unknown impact related to an "incorrect write protection of pages".
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker full control (estimated)
Severity
6.2 Medium
Exploitation
<1% chance of attack within 30 days
Timeline
Published13 Aug 2007
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2007-4304 · NVD
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