CVE-2017-9430
Stack-based buffer overflow in dnstracer through 1.9 allows attackers to cause a denial of service (application crash) or possibly have unspecified other...
- Published
- Jun 5, 2017
- Updated
- Aug 5, 2024
- Assigning CNA
- mitre
- Evidence observed
- Jun 5, 2017
Primary CVSS
nvd · CVSS 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 94.5%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
Stack-based buffer overflow in dnstracer through 1.9 allows attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a command line with a long name argument that is mishandled in a strcpy call for argv[0]. An example threat model is a web application that launches dnstracer with an untrusted name string.
Sources
4Proof-of-concept exploit for CVE-2017-9430, a stack-based buffer overflow in dnstracer 1.9, triggered via a long command-line argument causing denial of service.
- Dnstracer-1.9-FixPatch
Patched version of dnstracer fixing CVE-2017-9430 stack-based buffer overflow via argv[0] length validation. Traces DNS server chains for hostname resolution.
Responsible use
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