It was discovered that Go Text incorrectly handled certain encodings. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-14040)
It was discovered that Go Text incorrectly handled certain BCP 47 language tags. An attacker could possibly use this issue to cause a denial of service. CVE-2020-28851, CVE-2020-28852 and CVE-2021-38561 affected only Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-28851, CVE-2020-28852, CVE-2021-38561, CVE-2022-32149)