CVE-2018-20102
7.5 · HIGHOverview
CVE-2018-20102 is a high-severity vulnerability affecting haproxy haproxy. It was published on December 12, 2018 and has a CVSS 3.0 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
An out-of-bounds read in dns_validate_dns_response in dns.c was discovered in HAProxy through 1.8.14. Due to a missing check when validating DNS responses, remote attackers might be able read the 16 bytes corresponding to an AAAA record from the non-initialized part of the buffer, possibly accessing anything that was left on the stack, or even past the end of the 8193-byte buffer, depending on the value of accepted_payload_size.
Remediation
Check the references section for vendor advisories and patches from haproxy. Update haproxy 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 |
|---|---|---|---|
| haproxy | haproxy | 0 | Affected |
References
Frequently Asked Questions
What is CVE-2018-20102?
CVE-2018-20102 is a high-severity vulnerability affecting haproxy haproxy. It was published on December 12, 2018 and has a CVSS 3.0 base score of 7.5 (HIGH).
How severe is CVE-2018-20102?
This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2018-20102?
Check the references section for vendor advisories and patches from haproxy. Update haproxy 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-2018-20102?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-20102 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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