CVE-2014-3956: Fedoraproject Fedora

Low severity, CVSS 1.9. EPSS: 0.6% chance of exploitation in the next 30 days.

The sm_close_on_exec function in conf.c in sendmail before 8.14.9 has arguments in the wrong order, and consequently skips setting expected FD_CLOEXEC flags, which allows local users to access unintended high-numbered file descriptors via a custom mail-delivery program.

Affected products

• Fedoraproject Fedora: version 20 only
• Freebsd Freebsd: up to and including 9.2
• HP Hpux: up to and including b.11.31
• Sendmail Sendmail: up to and including 8.14.8; version 8.6.7 only; version 8.7.6 only; version 8.7.7 only; version 8.7.8 only; version 8.7.9 only; …

Published 2014-06-04. Last modified 2026-06-17.