CVE-2001-0977: Debian Linux

Medium severity, CVSS 5.0. EPSS: 4.1% chance of exploitation in the next 30 days.

slapd in OpenLDAP 1.x before 1.2.12, and 2.x before 2.0.8, allows remote attackers to cause a denial of service (crash) via an invalid Basic Encoding Rules (BER) length field.

Affected products

• Debian Debian Linux: version 2.2 only
• Mandrakesoft Mandrake Linux: version 7.1 only; version 7.2 only; version 8.0 only
• Mandrakesoft Mandrake Linux Corporate Server: version 1.0.1 only
• Mandrakesoft Mandrake Single Network Firewall: version 7.2 only
• Openldap Openldap: version 1.0 only; version 1.0.1 only; version 1.0.2 only; version 1.0.3 only; version 1.1 only; version 1.1.1 only; …
• Red Hat Linux: version 6.2 only; version 7.0 only; version 7.1 only

Published 2001-07-16. Last modified 2026-06-16.