PT-2018-4975 · Powerdns+1 · Dnsdist+1

Guido Vranken · Published 2018-09-11 · Updated 2024-06-15 · CVE-2016-7069

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions dnsdist versions prior to 1.2.0

Description The issue arises from the handling of EDNS0 OPT records when parsing responses from a backend in dnsdist. Specifically, when dnsdist is configured to add EDNS Client Subnet to a query, it may receive a response containing an EDNS0 OPT record that needs to be removed before forwarding the response to the client. On 32-bit systems, the pointer arithmetic used to remove this record can trigger undefined behavior, leading to a crash.

Recommendations For versions prior to 1.2.0, update to version 1.2.0 or later to resolve the issue.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2016-7069

OPENSUSE-SU-2023_2760-2

OPENSUSE-SU-2024:12731-1

SUSE-SU-2023:2760-1

SUSE-SU-2023:2760-2

SUSE-SU-2023:2777-1

SUSE-SU-2023_2760-1

SUSE-SU-2023_2760-2

SUSE-SU-2023_2777-1

Affected Products

Suse

Dnsdist

References · 24

• https://osv.dev/vulnerability/SUSE-SU-2023:2760-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2016-7069 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2016-7069 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2016-7069 · Security Note
• https://osv.dev/vulnerability/CVE-2016-7069 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2023:2777-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-7069 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2023:2760-2 · Vendor Advisory
• https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2017-01.html · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2016-7069 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:12731-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-7069 · Security Note
• https://suse.com/security/cve/CVE-2018-14663 · Note
• https://suse.com/security/cve/CVE-2017-7557 · Note
• https://suse.com/support/update/announcement/2023/suse-su-20232760-2 · Note