CVE-2020-7455: Freebsd

Medium severity, CVSS 5.5. EPSS: 0.5% chance of exploitation in the next 30 days.

In FreeBSD 12.1-STABLE before r360973, 12.1-RELEASE before p5, 11.4-STABLE before r360973, 11.4-BETA1 before p1 and 11.3-RELEASE before p9, the FTP packet handler in libalias incorrectly calculates some packet length allowing disclosure of small amounts of kernel (for kernel NAT) or natd process space (for userspace natd).

Affected products

• Freebsd Freebsd: version 11.3 only; version 11.4 only; version 12.1 only

Published 2020-05-13. Last modified 2026-06-17.