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CVE-2014-0239

Date: May 27, 2014

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.

Severity Score

Related Resources (9)

http://www.securitytracker.com/id/1030309
http://www.securityfocus.com/bid/67691
http://secunia.com/advisories/59579
https://nvd.nist.gov/vuln/detail/CVE-2014-0239
https://security-tracker.debian.org/tracker/CVE-2014-0239
http://security.gentoo.org/glsa/glsa-201502-15.xml
http://www.samba.org/samba/security/CVE-2014-0239
https://people.canonical.com/~ubuntu-security/cve/CVE-2014-0239
https://www.mend.io/vulnerability-database/CVE-2014-0239

Severity Score

Weakness Type (CWE)

Improper Input Validation

CWE-20

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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