CVE-2014-0239

Name: CVE-2014-0239
Creator: NVD / NIST
Published: 2014-05-28T04:58:32.75+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 67.57%

Last modified Jun 17, 2026

CVE-2014-0239 is a vulnerability of currently unknown severity. The internal DNS server in Samba 4.x before 4.0.18 does not check the QR field in the header section of an incoming DNS message before sending a response, which allows remote attackers to cause a denial of service (CPU and bandwidth consumption) via a forged response packet that triggers a communication loop, a related issue to CVE-1999-0103.. EPSS estimates a 67.57% chance of exploitation in the next 30 days.

Description

The internal DNS server in Samba 4.x before 4.0.18 does not check the QR field in the header section of an incoming DNS message before sending a response, which allows remote attackers to cause a denial of service (CPU and bandwidth consumption) via a forged response packet that triggers a communication loop, a related issue to CVE-1999-0103.

Metrics

EPSS Probability

67.57%

99.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Samba	Samba	>= 4.0.0, < 4.0.18
Samba	Samba	>= 4.1.0, < 4.1.8

References

http://secunia.com/advisories/59579Third Party Advisory
http://security.gentoo.org/glsa/glsa-201502-15.xmlThird Party Advisory
http://www.samba.org/samba/security/CVE-2014-0239Vendor Advisory
http://www.securityfocus.com/bid/67691Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1030309Third Party Advisory, VDB Entry
http://secunia.com/advisories/59579Third Party Advisory
http://security.gentoo.org/glsa/glsa-201502-15.xmlThird Party Advisory
http://www.samba.org/samba/security/CVE-2014-0239Vendor Advisory
http://www.securityfocus.com/bid/67691Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1030309Third Party Advisory, VDB Entry

Timeline

Published: May 28, 2014
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2014-0239?

How severe is CVE-2014-0239?

Severity scoring for CVE-2014-0239 is pending analysis. The EPSS model estimates a 67.57% probability of exploitation in the next 30 days.

How do I fix CVE-2014-0239?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2014-0239?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST