CVE-2016-6172
7.1 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C
6.8 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
6.6 Medium
AI Score
Confidence
High
0.006 Low
EPSS
Percentile
79.4%
PowerDNS (aka pdns) Authoritative Server before 4.0.1 allows remote primary DNS servers to cause a denial of service (memory exhaustion and secondary DNS server crash) via a large (1) AXFR or (2) IXFR response.
Affected configurations
References
lists.opensuse.org/opensuse-updates/2016-08/msg00085.html
www.debian.org/security/2016/dsa-3664
www.openwall.com/lists/oss-security/2016/07/06/3
www.securityfocus.com/bid/91678
www.securitytracker.com/id/1036242
doc.powerdns.com/md/changelog/#powerdns-authoritative-server-401
github.com/PowerDNS/pdns/issues/4128
github.com/PowerDNS/pdns/issues/4133
github.com/PowerDNS/pdns/pull/4134
github.com/sischkg/xfer-limit/blob/master/README.md
lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html
Related
7.1 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C
6.8 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
6.6 Medium
AI Score
Confidence
High
0.006 Low
EPSS
Percentile
79.4%