CVE-2018-5764: Canonical Ubuntu Linux

High severity, CVSS 7.5. EPSS: 6.4% chance of exploitation in the next 30 days.

The parse_arguments function in options.c in rsyncd in rsync before 3.1.3 does not prevent multiple --protect-args uses, which allows remote attackers to bypass an argument-sanitization protection mechanism.

Affected products

• Canonical Ubuntu Linux: 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
• Samba Rsync: before 3.1.3 (fixed in 3.1.3)

Published 2018-01-17. Last modified 2026-06-17.