Vulnerability · Published May 19, 2020 · Assigned by mitre
CVE-2020-12244
High 7.5
In plain English
A high-severity security flaw in the pdns-recursor package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.4% (higher than 84% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)2.4%top 15.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An issue has been found in PowerDNS Recursor 4.1.0 through 4.3.0 where records in the answer section of a NXDOMAIN response lacking an SOA were not properly validated in SyncRes::processAnswer, allowing an attacker to bypass DNSSEC validation.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | pdns-recursor | 4.3.1-r0 | ALPINE-CVE-2020-12244 |
| Alpine:v3.21 | pdns-recursor | 4.3.1-r0 | ALPINE-CVE-2020-12244 |
| Alpine:v3.22 | pdns-recursor | 4.3.1-r0 | ALPINE-CVE-2020-12244 |
| Alpine:v3.23 | pdns-recursor | 4.3.1-r0 | ALPINE-CVE-2020-12244 |
| Alpine:v3.24 | pdns-recursor | 4.3.1-r0 | ALPINE-CVE-2020-12244 |
| Debian:12 | pdns-recursor | 4.3.1-1 | DEBIAN-CVE-2020-12244 |
| Debian:13 | pdns-recursor | 4.3.1-1 | DEBIAN-CVE-2020-12244 |
| Debian:14 | pdns-recursor | 4.3.1-1 | DEBIAN-CVE-2020-12244 |
Affected products (as reported)
References
- https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-02.html x_refsource_CONFIRM
- [oss-security] 20200519 PowerDNS Recursor 4.3.1, 4.2.2. and 4.1.16 released fixing multiple vulnerabilities mailing-list, x_refsource_MLIST
- DSA-4691 vendor-advisory, x_refsource_DEBIAN
- openSUSE-SU-2020:0698 vendor-advisory, x_refsource_SUSE
- FEDORA-2020-d9abb0c06d vendor-advisory, x_refsource_FEDORA
- FEDORA-2020-c0ff3df740 vendor-advisory, x_refsource_FEDORA