CVE-1999-0022: Bsdi Bsd OS

High severity, CVSS 7.8. EPSS: 0.5% chance of exploitation in the next 30 days.

Local user gains root privileges via buffer overflow in rdist, via expstr() function.

Affected products

• Bsdi Bsd OS: version 1.1 only
• Freebsd Freebsd: version 2.0 only; version 2.0.5 only; version 2.1.0 only
• HP HP-Ux: version 10.00 only
• IBM Aix: version 3.1 only; version 3.2 only; version 3.2.4 only; version 3.2.5 only; version 4.1 only; version 4.1.1 only; …
• Sgi Irix: version 5.0 only; version 5.0.1 only; version 5.1 only; version 5.1.1 only; version 5.2 only; version 5.3 only; …
• Sun Solaris: version 4.1.3 only
• Sun Sunos: version 4.1.1 only; version 4.1.2 only; version 4.1.3u1 only; version 5.0 only; version 5.1 only; version 5.2 only; …

Published 1996-07-03. Last modified 2026-06-16.