#VU9441 Memory leak in PowerDNS Recursor - CVE-2017-15094

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Main Vulnerability Database Vulnerabilities #VU9441

#VU9441 Memory leak in PowerDNS Recursor - CVE-2017-15094

Published: November 29, 2017


Vulnerability identifier: #VU9441
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2017-15094
CWE-ID: CWE-401
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
PowerDNS Recursor
Software vendor:
PowerDNS.COM B.V.

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to a flaw in the DNSSEC parsing code of PowerDNS Recursor during a code audit by Nixu. A remote attacker can supply specially crafted DNSSEC ECDSA keys, parse it when validation is enabled by setting dnssec to a value other than off or process-no-validate (default), trigger memory leak and cause the service to crash.


Remediation

Update PowerDNS Recursor to version 4.0.7.

External links