CVE-2010-1938: Freebsd

High severity, CVSS 9.3. EPSS: 21.9% chance of exploitation in the next 30 days.

Off-by-one error in the __opiereadrec function in readrec.c in libopie in OPIE 2.4.1-test1 and earlier, as used on FreeBSD 6.4 through 8.1-PRERELEASE and other platforms, allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via a long username, as demonstrated by a long USER command to the FreeBSD 8.0 ftpd.

Affected products

• Freebsd Freebsd: version 6 only; version 6.4 only; version 7.0 only; version 7.0-release only; version 7.0_beta4 only; version 7.0_releng only; …
• Nrl Opie: up to and including 2.4.1; version 2.2 only; version 2.3 only; version 2.4 only; version 2.10 only; version 2.11 only; …

Published 2010-05-28. Last modified 2026-06-16.