UBUNTU-CVE-2018-16855

Advisory lineage Upstream: 1 Downstream: 0
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CVE-2018-16855
Published: 03 Dec 2018, 14:29
Last modified:08 Sept 2025, 16:45

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
3.0 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

03 Dec 2018, 14:29
Published
Vulnerability first disclosed
08 Sept 2025, 16:45
Last Modified
Vulnerability information updated

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 Metrics

  • v3.0•HIGH•Score: 7.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Systems

  • ubuntu•pdns-recursor

    all

References (3)