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Ubuntu Security Notice USN-4361-1
May 18, 2020
dovecot vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 20.04 LTS
– Ubuntu 19.10
Summary:
Several security issues were fixed in Dovecot.
Software Description:
– dovecot: IMAP and POP3 email server
Details:
Philippe Antoine discovered that Dovecot incorrectly handled certain data.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2020-10957, CVE-2020-10967)
Philippe Antoine discovered that Dovecot incorrectly handled certain data.
An attacker could possibly use this issue to cause a denial of service or execute
arbitrary code. (CVE-2020-10958)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS:
dovecot-core 1:2.3.7.2-1ubuntu3.1
Ubuntu 19.10:
dovecot-core 1:2.3.4.1-5ubuntu3.1
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/4361-1
CVE-2020-10957, CVE-2020-10958, CVE-2020-10967
Package Information:
https://launchpad.net/ubuntu/+source/dovecot/1:2.3.7.2-1ubuntu3.1
https://launchpad.net/ubuntu/+source/dovecot/1:2.3.4.1-5ubuntu3.1
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