Vulnerability Description
An issue has been found in PowerDNS Recursor before version 4.1.8 where a remote attacker sending a DNS query can trigger an out-of-bounds memory read while computing the hash of the query for a packet cache lookup, possibly leading to a crash.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Powerdns | Recursor | < 4.1.8 |
Related Weaknesses (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16855Issue TrackingThird Party Advisory
- https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-09Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16855Issue TrackingThird Party Advisory
- https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-09Vendor Advisory
FAQ
What is CVE-2018-16855?
CVE-2018-16855 is a vulnerability with a CVSS score of 7.5 (HIGH). An issue has been found in PowerDNS Recursor before version 4.1.8 where a remote attacker sending a DNS query can trigger an out-of-bounds memory read while computing the hash of the query for a packe...
How severe is CVE-2018-16855?
CVE-2018-16855 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-16855?
Check the references section above for vendor advisories and patch information. Affected products include: Powerdns Recursor.