CVE-2018-1000121: Canonical Ubuntu Linux

High severity, CVSS 7.5. EPSS: 9.2% chance of exploitation in the next 30 days.

A NULL pointer dereference exists in curl 7.21.0 to and including curl 7.58.0 in the LDAP code that allows an attacker to cause a denial of service

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only; version 16.04 only; version 17.10 only
• Debian Debian Linux: version 7.0 only; version 8.0 only; version 9.0 only
• Haxx Curl: from 7.21.0, up to and including 7.58.0
• Oracle Communications WebRTC Session Controller: before 7.2 (fixed in 7.2)
• Oracle Enterprise Manager Ops Center: version 12.2.2 only; version 12.3.3 only
• Oracle PeopleSoft Enterprise PeopleTools: version 8.55 only; version 8.56 only; version 8.57 only
• Red Hat Enterprise Linux Desktop: version 7.0 only
• Red Hat Enterprise Linux Server: version 7.0 only
• Red Hat Enterprise Linux Workstation: version 7.0 only

Published 2018-03-14. Last modified 2026-06-17.