Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Samba | Samba | >= 4.0.0, < 4.0.18 |
Related Weaknesses (CWE)
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 AdvisoryVDB Entry
- http://www.securitytracker.com/id/1030309Third Party AdvisoryVDB 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 AdvisoryVDB Entry
- http://www.securitytracker.com/id/1030309Third Party AdvisoryVDB Entry
FAQ
What is CVE-2014-0239?
CVE-2014-0239 is a vulnerability with a CVSS score of 5.0 (MEDIUM). 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 deni...
How severe is CVE-2014-0239?
CVE-2014-0239 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2014-0239?
Check the references section above for vendor advisories and patch information. Affected products include: Samba Samba.