Security readout for executives and security teams
Plain-English summary
CVE-2017-9430 is a memory-safety flaw in dnstracer through 1.9. A long name value can crash the application, and the CVE notes possible unspecified other impact. Business risk is highest where a web application or service invokes dnstracer using user-controlled input.
Executive priority
Treat as a targeted remediation item, not a broad emergency. Prioritize if dnstracer is reachable from web applications, automation, or support tools that process external input.
Technical view
The CVE describes a stack-based buffer overflow caused by mishandling a long name argument in a strcpy use involving argv[0]. Confirmed impact is denial of service through application crash; other impact is not specified in the provided sources.
Likely exposure
Exposure is likely limited to environments running dnstracer through 1.9, especially wrappers, scripts, or web applications that pass untrusted name strings into dnstracer.
Exploitation context
Public exploit references are listed by Exploit-DB, CXSecurity, and Packet Storm. The bundle does not show CISA KEV listing or other evidence of active in-the-wild exploitation.
Researcher notes
Affected product metadata in the bundle is sparse, but the description clearly names dnstracer through 1.9. The strongest confirmed impact is crash-based denial of service; treat unspecified other impact as unproven unless vendor or distribution advisories add detail.
Mitigation direction
- Identify all dnstracer installations and versions.
- Check operating system or package vendor guidance for fixed builds.
- Do not pass user-controlled names directly to dnstracer.
- Restrict input length and character handling in any wrapper service.
- Run any remaining dnstracer use with least privilege and isolation.
Validation and detection
- Confirm whether dnstracer version is through 1.9.
- Review applications and scripts that launch dnstracer.
- Check whether any web-facing workflow supplies dnstracer name input.
- Look for historical crashes tied to dnstracer execution.
- Verify compensating controls block untrusted oversized input.
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-2017-9430 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
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
- 42115CVE reference · exploit, x_refsource_EXPLOIT-DB
- https://cxsecurity.com/issue/WLB-2017060030CVE reference · x_refsource_MISC
- 42424CVE reference · exploit, x_refsource_EXPLOIT-DB
- https://packetstormsecurity.com/files/142799/DNSTracer-1.8.1-Buffer-Overflow.htmlCVE 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.