USN-6273-1: poppler vulnerabilities Jieyong Ma discovered that poppler incorrectly handled certain malformed PDF files. A remote attacker could possibly use this issue to cause poppler to crash, resulting in a denial of service. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2022-27337) It was discovered that poppler incorrectly handled certain malformed PDF files. A remote attacker could possibly use this issue to cause poppler to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS and Ubuntu 23.04. (CVE-2023-34872) Source: USN-6273-1: poppler vulnerabilities