========================================================================== Ubuntu Security Notice USN-4674-2 January 04, 2021
dovecot vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 14.04 ESM Summary: Dovecot could be made to denial of service if it received a specially crafted MIME. Software Description: - dovecot: IMAP and POP3 email server Details: USN-4674-1 fixed a vulnerability in Dovecot. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: Innokentii Sennovskiy discovered that Dovecot incorrectly handled MIME parsing. A remote attacker could possibly use this issue to cause Dovecot to crash, resulting in a denial of service. (CVE-2020-25275) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 ESM: dovecot-core 1:2.2.9-1ubuntu2.6+esm4 In general, a standard system update will make all the necessary changes. References: https://usn.ubuntu.com/4674-2 https://usn.ubuntu.com/4674-1 CVE-2020-25275
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