Security readout for executives and security teams
Plain-English summary
This flaw can crash software that uses the miekg/dns Go library to parse DNS zone data. A crash can interrupt availability, but the provided sources do not show data theft, privilege escalation, or active exploitation.
Executive priority
Treat this as a targeted availability risk. Prioritize internet-facing or customer-facing services that parse DNS zone data, but avoid emergency escalation unless dependency exposure is confirmed.
Technical view
CVE-2018-17419 affects setTA in scan_rr.go in the miekg/dns library before 1.0.10. A dns.ParseZone() parsing error can cause a segmentation violation, resulting in denial of service. No CVSS, CWE, or detailed affected CPE data is provided.
Likely exposure
Exposure is most likely in Go applications that depend on miekg/dns before 1.0.10 and parse DNS zone input, especially if that input is external or user supplied.
Exploitation context
The provided bundle does not show KEV listing or active exploitation. The available evidence supports a denial-of-service condition through malformed parsing behavior, but does not provide exploit prevalence or targeting details.
Researcher notes
The public description is sparse. Validate by dependency version and reachable ParseZone usage rather than assuming broad exposure. The source bundle does not provide CVSS, CWE, CPEs, exploit status, or detailed patch notes.
Mitigation direction
- Identify applications using github.com/miekg/dns before version 1.0.10.
- Upgrade miekg/dns to 1.0.10 or later where compatible.
- Prioritize services parsing externally supplied DNS zone data.
- Check vendor or project guidance for any additional recommended handling.
- Add monitoring for crashes in DNS zone parsing workflows.
Validation and detection
- Review SBOMs, go.mod, and go.sum for miekg/dns versions.
- Confirm deployed artifacts no longer include miekg/dns before 1.0.10.
- Map code paths that call dns.ParseZone().
- Determine whether ParseZone input is trusted, external, or user controlled.
- Review logs for unexplained crashes in zone parsing services.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2018-17419 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/miekg/dns/issues/742CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.