Advisory Published

USN-4168-1: Libidn2 vulnerabilities

First published: Tue Oct 29 2019(Updated: )

It was discovered that Libidn2 incorrectly handled certain inputs. A attacker could possibly use this issue to impersonate domains. (CVE-2019-12290) It was discovered that Libidn2 incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code. (CVE-2019-18224)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/idn2<2.0.5-1ubuntu0.3
2.0.5-1ubuntu0.3
Ubuntu Ubuntu=19.04
All of
ubuntu/libidn2-0<2.0.5-1ubuntu0.3
2.0.5-1ubuntu0.3
Ubuntu Ubuntu=19.04
All of
ubuntu/idn2<2.0.4-1.1ubuntu0.2
2.0.4-1.1ubuntu0.2
Ubuntu Ubuntu=18.04
All of
ubuntu/libidn2-0<2.0.4-1.1ubuntu0.2
2.0.4-1.1ubuntu0.2
Ubuntu Ubuntu=18.04

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Child vulnerabilities

(Contains the following vulnerabilities)

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