CVE-2018-17419
miekg/dns parsing error leads to nil pointer dereference and DoS
An issue was discovered in setTA in scan_rr.go in the Miek Gieben DNS library before 1.0.10 for Go. A dns.ParseZone() parsing error causes a segmentation violation, leading to denial of service.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
An issue was discovered in setTA in scan_rr.go in the Miek Gieben DNS library before 1.0.10 for Go. A dns.ParseZone() parsing error causes a segmentation violation, leading to denial of service.
- Record
CVE-2018-17419- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-476
- Updated
- 2026-11-02
CVE List No score
An issue was discovered in setTA in scan_rr.go in the Miek Gieben DNS library before 1.0.10 for Go. A dns.ParseZone() parsing error causes a segmentation violation, leading to denial of service.
- Record
CVE-2018-17419- Updated
- 2026-11-02
EUVDEUVD-2021-1028 No score
An issue was discovered in setTA in scan_rr.go in the Miek Gieben DNS library before 1.0.10 for Go. A dns.ParseZone() parsing error causes a segmentation violation, leading to denial of service.
- Record
EUVD-2021-1028- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9jcx-pr2f-qvq5
miekg/dns parsing error leads to nil pointer dereference and DoS
An issue was discovered in setTA in scan_rr.go in the Miek Gieben DNS library before 1.0.10 for Go. A dns.ParseZone() parsing error causes a segmentation violation, leading to denial of service.
- Record
GHSA-9jcx-pr2f-qvq5- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
OSV
An issue was discovered in setTA in scan_rr.go in the Miek Gieben DNS library before 1.0.10 for Go. A dns.ParseZone() parsing error causes a segmentation violation, leading to denial of service.
- Record
CVE-2018-17419- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVGHSA-9jcx-pr2f-qvq5
miekg/dns parsing error leads to nil pointer dereference and DoS
An issue was discovered in setTA in scan_rr.go in the Miek Gieben DNS library before 1.0.10 for Go. A dns.ParseZone() parsing error causes a segmentation violation, leading to denial of service.
- Record
GHSA-9jcx-pr2f-qvq5- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2018-17419
An issue was discovered in setTA in scan_rr.go in the Miek Gieben DNS library before 1.0.10 for Go. A dns.ParseZone() parsing error causes a segmentation violation, leading to denial of service.
- Record
UBUNTU-CVE-2018-17419- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVGO-2020-0028 No score
Denial of service via malformed zone file in github.com/miekg/dns
Due to a nil pointer dereference, parsing a malformed zone file containing TA records may cause a panic. If parsing user supplied input, this may be used as a denial of service vector.
- Record
GO-2020-0028- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/miekg/dnsGo |
before 1.0.10 | 1.0.10 |
golang-github-miekg-dnsUbuntu:18.04:LTS |
All versions, plus listed versions 0.0~git20170501.0.f282f80-20.0~git20170501.0.f282f80-3 |
None known |
golang-github-miekg-dnsUbuntu:20.04:LTS |
All versions, plus listed versions 1.0.4+ds-1ubuntu1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-17419 is a high vulnerability (CVSS 7.5) in Dns Library Project Library, published March 7, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.76%, the 78th percentile. Fixed in github.com/miekg/dns 1.0.10.
References
github.com/miekg/dns/issues/742
nvd.nist.gov/vuln/detail/CVE-2018-17419
pkg.go.dev/vuln/GO-2020-0028
ubuntu.com/security/CVE-2018-17419
cve.org/CVERecord?id=CVE-2018-17419