CVE-2017-9103
9.8 · CRITICALOverview
CVE-2017-9103 is a critical-severity vulnerability affecting gnu adns. It was published on June 18, 2020 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
An issue was discovered in adns before 1.5.2. pap_mailbox822 does not properly check st from adns__findlabel_next. Without this, an uninitialised stack value can be used as the first label length. Depending on the circumstances, an attacker might be able to trick adns into crashing the calling program, leaking aspects of the contents of some of its memory, causing it to allocate lots of memory, or perhaps overrunning a buffer. This is only possible with applications which make non-raw queries for SOA or RP records.
Remediation
Check the references section for vendor advisories and patches from gnu. Update adns to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| gnu | adns | >= 0, < 1.5.2 | Affected |
References
Frequently Asked Questions
What is CVE-2017-9103?
CVE-2017-9103 is a critical-severity vulnerability affecting gnu adns. It was published on June 18, 2020 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2017-9103?
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2017-9103?
Check the references section for vendor advisories and patches from gnu. Update adns to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2017-9103?
CyberStrike's AI-powered security agents can automatically detect CVE-2017-9103 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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