CVE-2018-16855

moderate-risk
Published 2018-12-03

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.

Do I need to act?

!
19.8% chance of exploitation in next 30 days
EPSS score — higher than 80% of all CVEs
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Powerdns

References (4)

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16855
Vendor Advisory https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-09...
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16855
Vendor Advisory https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-09...
45
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 14/34 · Moderate
Exposure 5/34 · Minimal