CVE-2014-3956

Severity: low (CVSS 1.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2014-06-04 · updated 2026-06-17
Weakness: CWE-200

Description

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: 20
FreeBSD: through 9.2
Hpux: through b.11.31
Sendmail: through 8.14.8; 8.6.7, 8.7.6, 8.7.7, 8.7.8, 8.7.9, 8.7.10 (+46)

References

http://advisories.mageia.org/MGASA-2014-0270.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-June/134349.html
http://lists.opensuse.org/opensuse-updates/2014-06/msg00032.html
http://lists.opensuse.org/opensuse-updates/2014-06/msg00033.html
http://packetstormsecurity.com/files/126975/Slackware-Security-Advisory-sendmail-Updates.html
http://secunia.com/advisories/57455
http://secunia.com/advisories/58628
http://security.gentoo.org/glsa/glsa-201412-32.xml
http://www.freebsd.org/security/advisories/FreeBSD-SA-14%3A11.sendmail.asc
http://www.mandriva.com/security/advisories?name=MDVSA-2014:147
http://www.mandriva.com/security/advisories?name=MDVSA-2015:128

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