Out-of-Bounds Memory Read Vulnerability in PowerDNS Recursor
CVE-2018-16855

7.5HIGH

Key Information:

Vendor

[unknown]

Status
Pdns-recursor
Vendor
CVE Published:
3 December 2018

What is CVE-2018-16855?

A vulnerability exists in PowerDNS Recursor versions prior to 4.1.8 that allows a remote attacker to exploit an out-of-bounds memory read while processing DNS queries. This issue occurs when the system computes a hash for packet cache lookups, potentially leading to a crash. It is crucial for users of affected versions to update to the latest releases to mitigate potential security risks.

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Deploy the Patch

Affected Version(s)

pdns-recursor 4.1.8

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16855
x_refsource_CONFIRM
https://docs.powerdns.com/recursor/security-advisories/po...
x_refsource_MISC

EPSS Score

19% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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