CVE-2019-25031
Summary
| CVE | CVE-2019-25031 |
|---|---|
| State | PUBLISHED |
| Assigner | mitre |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-04-27 06:15:07 UTC |
| Updated | 2026-08-25 10:55:42 UTC |
| Description | Unbound before 1.9.5 allows configuration injection in create_unbound_ad_servers.sh upon a successful man-in-the-middle attack against a cleartext HTTP session. NOTE: The vendor does not consider this a vulnerability of the Unbound software. create_unbound_ad_servers.sh is a contributed script from the community that facilitates automatic configuration creation. It is not part of the Unbound installation |
Risk And Classification
Primary CVSS: v3.1 5.9 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS: 0.013390000 probability, percentile 0.691270000 (date 2026-08-25)
Problem Types: CWE-74 | n/a
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 5.9 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |
| 2.0 | [email protected] | Primary | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
HighPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
HighAvailability
NoneCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
MediumAuthentication
NoneConfidentiality
NoneIntegrity
PartialAvailability
NoneAV:N/AC:M/Au:N/C:N/I:P/A:N
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Debian | Debian Linux | 9.0 | All | All | All |
| Application | Nlnetlabs | Unbound | All | All | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| April 2021 Unbound Vulnerabilities in NetApp Products | NetApp Product Security | af854a3a-2127-422b-91ae-364da2661108 | security.netapp.com | Third Party Advisory |
| [SECURITY] [DLA 2652-1] unbound1.9 security update | af854a3a-2127-422b-91ae-364da2661108 | lists.debian.org | Mailing List, Third Party Advisory |
| Our Audit of Unbound DNS by X41 D-Sec – Full Results – Open Source Technology Improvement Fund | af854a3a-2127-422b-91ae-364da2661108 | ostif.org | Not Applicable, Third Party Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 178585 Debian Security Update for unbound1.9 (DLA 2652-1)
- 198356 Ubuntu Security Notification for Unbound vulnerabilities (USN-4938-1)
- 670501 EulerOS Security Update for unbound (EulerOS-SA-2021-2259)
- 670527 EulerOS Security Update for unbound (EulerOS-SA-2021-2285)
- 670560 EulerOS Security Update for unbound (EulerOS-SA-2021-2318)
- 670593 EulerOS Security Update for unbound (EulerOS-SA-2021-2351)
- 670678 EulerOS Security Update for unbound (EulerOS-SA-2021-2436)
- 670924 EulerOS Security Update for unbound (EulerOS-SA-2021-2285)
- 671048 EulerOS Security Update for unbound (EulerOS-SA-2021-2620)
- 751647 SUSE Enterprise Linux Security Update for unbound (SUSE-SU-2022:0176-1)
- 751664 OpenSUSE Security Update for unbound (openSUSE-SU-2022:0176-1)
- 751682 SUSE Enterprise Linux Security Update for unbound (SUSE-SU-2022:0301-1)