Improper Authorization - CVE-2019-10162
Published: July 31, 2019 / Updated: August 4, 2020
Vulnerability identifier: #VU33440
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-10162
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
A vulnerability has been found in PowerDNS Authoritative Server before versions 4.1.10, 4.0.8 allowing an authorized user to cause the server to exit by inserting a crafted record in a MASTER type zone under their control. The issue is due to the fact that the Authoritative Server will exit when it runs into a parsing error while looking up the NS/A/AAAA records it is about to use for an outgoing notify.
Affected software
pdns (Alpine package)
SUSE Package Hub for SUSE Linux Enterprise
Opensuse
SUSE Linux
SUSE Package Hub for SUSE Linux Enterprise
Opensuse
SUSE Linux
How to mitigate CVE-2019-10162
Install update from vendor's website.
pdns (Alpine package) - addressed in versions 4.0.8-r0, 4.1.10-r0
External References
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00036.html
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00054.html
- https://blog.powerdns.com/2019/06/21/powerdns-authoritative-server-4-0-8-and-4-1-10-released/
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10162
- https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2019-04.html