Improper Input Validation Affecting pdns package, versions <4.1.7-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-ALPINE311-PDNS-544347
- published20 Mar 2019
- disclosed21 Mar 2019
Introduced: 20 Mar 2019
CVE-2019-3871 (opens in a new tab)How to fix?
Upgrade Alpine:3.11 pdns to version 4.1.7-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream pdns package and not the pdns package as distributed by Alpine.
See How to fix? for Alpine:3.11 relevant fixed versions and status.
A vulnerability was found in PowerDNS Authoritative Server before 4.0.7 and before 4.1.7. An insufficient validation of data coming from the user when building a HTTP request from a DNS query in the HTTP Connector of the Remote backend, allowing a remote user to cause a denial of service by making the server connect to an invalid endpoint, or possibly information disclosure by making the server connect to an internal endpoint and somehow extracting meaningful information about the response
References
- https://seclists.org/bugtraq/2019/Apr/8
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3871
- https://www.debian.org/security/2019/dsa-4424
- https://lists.debian.org/debian-lts-announce/2019/03/msg00039.html
- https://security-tracker.debian.org/tracker/CVE-2019-3871
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GWUHF6MRSQ3YO7UUISGLV7MXCAGBW2VD/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ROFI6OTWF4GKONNSNEDUCW6LVSSEBZNF/
- https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2019-03.html
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00022.html
- http://www.openwall.com/lists/oss-security/2019/03/18/4
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3871
- http://www.securityfocus.com/bid/107491
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-3871
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GWUHF6MRSQ3YO7UUISGLV7MXCAGBW2VD/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ROFI6OTWF4GKONNSNEDUCW6LVSSEBZNF/