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CVE-2014-3956

1.9 · LOW

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 unin…

Published Jun 4, 2014freebsdCWE-200EPSS 0.64%

Overview

CVE-2014-3956 is a low-severity vulnerability affecting freebsd freebsd. It was published on June 4, 2014 and has a CVSS 2.0 base score of 1.9 (LOW).

This vulnerability has a CVSS 2.0 base score of 1.9, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from freebsd. Update freebsd to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
freebsdfreebsd0Affected
hphpux0Affected
sendmailsendmail0Affected

References

Refftp://ftp.sendmail.org/pub/sendmail/RELEASE_NOTESRefadvisories.mageia.org/MGASA-2014-0270.htmlReflists.fedoraproject.org/pipermail/package-announce/2014-June/134349.htmlReflists.opensuse.org/opensuse-updates/2014-06/msg00032.htmlReflists.opensuse.org/opensuse-updates/2014-06/msg00033.htmlRefpacketstormsecurity.com/files/126975/Slackware-Security-Advisory-sendmail-Updates.htmlRefsecunia.com/advisories/57455Refsecunia.com/advisories/58628Refsecurity.gentoo.org/glsa/glsa-201412-32.xmlRefwww.freebsd.org/security/advisories/FreeBSD-SA-14%3A11.sendmail.asc

How CyberStrike helps

Frequently asked questions

What is CVE-2014-3956?

CVE-2014-3956 is a low-severity vulnerability affecting freebsd freebsd. It was published on June 4, 2014 and has a CVSS 2.0 base score of 1.9 (LOW).

How severe is CVE-2014-3956?

This vulnerability has a CVSS 2.0 base score of 1.9, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2014-3956?

Check the references section for vendor advisories and patches from freebsd. Update freebsd to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2014-3956?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2014-3956 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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