Vulnerability Report

CVE-2016-7069

Title: Powerdns Dnsdist Improper Input Validation

Improper Input Validation

Proof Of Concept

No public PoC currently indexed for CVE-2016-7069.

CWE Category CWE-20
Published Date Sep 11, 2018
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 5.9 CVSS v3.0
Exploit Probability (EPSS)
4.58%

Vulnerability Summary

CVE-2016-7069: An issue has been found in dnsdist before 1.2.0 in the way EDNS0 OPT records are handled when parsing responses from a backend. When dnsdist is configured to add EDNS Client Subnet to a query, the response may contain an EDNS0 OPT record that has to be removed before forwarding the response to the initial client. On a 32-bit system, the pointer arithmetic used when parsing the received response to remove that record might trigger an undefined behavior leading to a crash.

Impacted Vendors

P
powerdns 1

Reference Links

http://www.securityfocus.com/bid/100509 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7069 https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2017-01.html http://www.securityfocus.com/bid/100509 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7069 https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2017-01.html
CVSS v3.0
Source Entity [email protected]
Severity MEDIUM
5.9
Attack Vector
NETWORK
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v3.0
Source Entity [email protected]
Severity HIGH
7.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
5.0
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2016-7069 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity HIGH
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.