CVE-2017-9430
CVE-2017-9430 is a critical-severity vulnerability in Dnstracer Project Dnstracer with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 11% places it in the 95th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 11% (95th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Dnstracer Project Dnstracer
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is 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 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.
- How severe is CVE-2017-9430?
- CVE-2017-9430 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2017-9430 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 11% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2017-9430?
- CVE-2017-9430 affects Dnstracer Project Dnstracer. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2017-9430?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2017-9430 published?
- CVE-2017-9430 was published on 2017-06-05 and last updated on 2026-06-17.
References
- https://cxsecurity.com/issue/WLB-2017060030
- https://packetstormsecurity.com/files/142799/DNSTracer-1.8.1-Buffer-Overflow.html
- https://www.exploit-db.com/exploits/42115/
- https://www.exploit-db.com/exploits/42424/
Affected products (1)
- cpe:2.3:a:dnstracer_project:dnstracer:*:*:*:*:*:*:*:*
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