ID de Prueba:	1.3.6.1.4.1.25623.1.0.844495
Categoría:	Ubuntu Local Security Checks
Título:	Ubuntu: Security Advisory for thunderbird (USN-4421-1)
Resumen:	The remote host is missing an update for the 'thunderbird'; package(s) announced via the USN-4421-1 advisory.
Descripción:	Summary: The remote host is missing an update for the 'thunderbird' package(s) announced via the USN-4421-1 advisory. Vulnerability Insight: Multiple security issues were discovered in Thunderbird. If a user were tricked in to opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, or execute arbitrary code. (CVE-2020-12405, CVE-2020-12406, CVE-2020-12410, CVE-2020-12417, CVE-2020-12418, CVE-2020-12419, CVE-2020-12420) It was discovered that Thunderbird would continue an unencrypted connection when configured to use STARTTLS for IMAP if the server responded with PREAUTH. A remote attacker could potentially exploit this to perform a person-in-the-middle attack in order to obtain sensitive information. (CVE-2020-12398) It was discovered that NSS showed timing differences when performing DSA signatures. An attacker could potentially exploit this to obtain private keys using a timing attack. (CVE-2020-12399) It was discovered that when performing add-on updates, certificate chains not terminating with built-in roots were silently rejected. This could result in add-ons becoming outdated. (CVE-2020-12421) Affected Software/OS: 'thunderbird' package(s) on Ubuntu 20.04 LTS, Ubuntu 19.10, Ubuntu 18.04 LTS, Ubuntu 16.04 LTS. Solution: Please install the updated package(s). CVSS Score: 9.3 CVSS Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2020-12405 Common Vulnerability Exposure (CVE) ID: CVE-2020-12406 Common Vulnerability Exposure (CVE) ID: CVE-2020-12410 Common Vulnerability Exposure (CVE) ID: CVE-2020-12417 Common Vulnerability Exposure (CVE) ID: CVE-2020-12418 Common Vulnerability Exposure (CVE) ID: CVE-2020-12419 Common Vulnerability Exposure (CVE) ID: CVE-2020-12420 Common Vulnerability Exposure (CVE) ID: CVE-2020-12398 Common Vulnerability Exposure (CVE) ID: CVE-2020-12399 Common Vulnerability Exposure (CVE) ID: CVE-2020-12421
Copyright	Copyright (C) 2020 Greenbone Networks GmbH

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