ID CVE-2017-15094
Summary An issue has been found in the DNSSEC parsing code of PowerDNS Recursor from 4.0.0 up to and including 4.0.6 leading to a memory leak when parsing specially crafted DNSSEC ECDSA keys. These keys are only parsed when validation is enabled by setting dnssec to a value other than off or process-no-validate (default).
References
Vulnerable Configurations
  • cpe:2.3:a:powerdns:recursor:4.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:powerdns:recursor:4.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:powerdns:recursor:4.0.0:-:*:*:*:*:*:*
    cpe:2.3:a:powerdns:recursor:4.0.0:-:*:*:*:*:*:*
  • cpe:2.3:a:powerdns:recursor:4.0.0:alpha1:*:*:*:*:*:*
    cpe:2.3:a:powerdns:recursor:4.0.0:alpha1:*:*:*:*:*:*
  • cpe:2.3:a:powerdns:recursor:4.0.1:*:*:*:*:*:*:*
    cpe:2.3:a:powerdns:recursor:4.0.1:*:*:*:*:*:*:*
  • cpe:2.3:a:powerdns:recursor:4.0.2:*:*:*:*:*:*:*
    cpe:2.3:a:powerdns:recursor:4.0.2:*:*:*:*:*:*:*
  • cpe:2.3:a:powerdns:recursor:4.0.3:*:*:*:*:*:*:*
    cpe:2.3:a:powerdns:recursor:4.0.3:*:*:*:*:*:*:*
  • cpe:2.3:a:powerdns:recursor:4.0.4:*:*:*:*:*:*:*
    cpe:2.3:a:powerdns:recursor:4.0.4:*:*:*:*:*:*:*
  • cpe:2.3:a:powerdns:recursor:4.0.5:*:*:*:*:*:*:*
    cpe:2.3:a:powerdns:recursor:4.0.5:*:*:*:*:*:*:*
  • cpe:2.3:a:powerdns:recursor:4.0.6:*:*:*:*:*:*:*
    cpe:2.3:a:powerdns:recursor:4.0.6:*:*:*:*:*:*:*
CVSS
Base: 4.3 (as of 09-10-2019 - 23:24)
Impact:
Exploitability:
CWE CWE-772
CAPEC
  • HTTP DoS
    An attacker performs flooding at the HTTP level to bring down only a particular web application rather than anything listening on a TCP/IP connection. This denial of service attack requires substantially fewer packets to be sent which makes DoS harder to detect. This is an equivalent of SYN flood in HTTP. The idea is to keep the HTTP session alive indefinitely and then repeat that hundreds of times. This attack targets resource depletion weaknesses in web server software. The web server will wait to attacker's responses on the initiated HTTP sessions while the connection threads are being exhausted.
Access
VectorComplexityAuthentication
NETWORK MEDIUM NONE
Impact
ConfidentialityIntegrityAvailability
NONE NONE PARTIAL
cvss-vector via4 AV:N/AC:M/Au:N/C:N/I:N/A:P
refmap via4
bid 101982
confirm https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2017-07.html
Last major update 09-10-2019 - 23:24
Published 23-01-2018 - 15:29
Last modified 09-10-2019 - 23:24
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