CVE-2018-16855

Advisory lineage Upstream: 0 Downstream: 6
Modified
Published: 03 Dec 2018, 14:00
Last modified:05 Aug 2024, 10:32

Vulnerability Summary

Overall Risk (default)
medium
44/100
CVSS Score
7.5 HIGH
v3.0 (cve.org)
EPSS Score
70.79% CRITICAL
71% probability +50.95%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

03 Dec 2018, 14:00
Published
Vulnerability first disclosed
05 Aug 2024, 10:32
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
  • v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 70.79%• Percentile: 99%

Techniques & Countermeasures

  • CWE-125•Out-of-bounds Read

    The product reads data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • powerdns•recursor

    < 4.1.8

  • [unknown]•pdns-recursor

    4.1.8

References (2)