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Vulnerability · Published May 19, 2020 · Assigned by mitre

CVE-2020-12663

High 7.5

In plain English

A high-severity security flaw in the unbound package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.6% (higher than 89% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.5High
Exploit odds (30 days)3.6%top 10.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

Unbound before 1.10.1 has an infinite loop via malformed DNS answers received from upstream servers.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20unbound1.10.1-r0ALPINE-CVE-2020-12663
Alpine:v3.21unbound1.10.1-r0ALPINE-CVE-2020-12663
Alpine:v3.22unbound1.10.1-r0ALPINE-CVE-2020-12663
Alpine:v3.23unbound1.10.1-r0ALPINE-CVE-2020-12663
Alpine:v3.24unbound1.10.1-r0ALPINE-CVE-2020-12663
Debian:12unbound1.10.1-1DEBIAN-CVE-2020-12663
Debian:13unbound1.10.1-1DEBIAN-CVE-2020-12663
Debian:14unbound1.10.1-1DEBIAN-CVE-2020-12663

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References