An issue has been found in PowerDNS Authoritative Server versions up to and including 3.4.10, 4.0.1 allowing an authorized user to crash the server by inserting a specially crafted record in a zone under their control then sending a DNS query for that record
Published Nov 1, 2018
7.5
HIGHCVSS 3.0
EPSS 2.00%
Description
An issue has been found in PowerDNS Authoritative Server versions up to and including 3.4.10, 4.0.1 allowing an authorized user to crash the server by inserting a specially crafted record in a zone under their control then sending a DNS query for that record. The issue is due to an integer overflow when checking if the content of the record matches the expected size, allowing an attacker to cause a read past the buffer boundary.
Affected products
- Vendor n/a Product Pdns Defaultn/a
- Version up to and including 3.4.10StatusaffectedConstraints-
- Version up to and including 4.0.1StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| n/a | Pdns | n/a |
|
Configuration 1
- ≤ 3.4.10
- ≥ 4.0.0 · ≤ 4.0.1
Configuration 2
- 8.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:L/Au:S/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.00% (0.01997) | 79.97th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.00% (0.01997) | 78.06th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.13% (0.00131) | 30.09th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.08% (0.00083) | 37.18th | v3 (v2023.03.01) |
| May 27, 2024 | 0.06% (0.00059) | 24.73th | v3 (v2023.03.01) |
| Mar 27, 2024 | 0.06% (0.00055) | 20.79th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00053) | 18.74th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
References (2)
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-2120 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://www.debian.org/security/2017/dsa-3764 vendor-advisoryx_refsource_DEBIANThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-2120 | x_refsource_CONFIRMIssue TrackingThird Party Advisory | |
| https://www.debian.org/security/2017/dsa-3764 | vendor-advisoryx_refsource_DEBIANThird Party Advisory |
Change history (0)
No recorded changes yet.