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Debian LTS Advisory ([SECURITY] [DLA 1333-1] dovecot security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Several vulnerabilities have been discovered in the Dovecot email server. The Common Vulnerabilities and Exposures project identifies the following issues: CVE-2017-14461 Aleksandar Nikolic of Cisco Talos and 'flxflndy' discovered that Dovecot does not properly parse invalid email addresses, which may cause a crash or leak memory contents to an attacker. CVE-2017-15130 It was discovered that TLS SNI config lookups may lead to excessive memory usage, causing imap-login/pop3-login VSZ limit to be reached and the process restarted, resulting in a denial of service. Only Dovecot configurations containing local_name { } or local { } configuration blocks are affected. CVE-2017-15132 It was discovered that Dovecot contains a memory leak flaw in the login process on aborted SASL authentication.
Affected Software
Affected Software
dovecot on Debian Linux
Detection Method
Detection Method
This check tests the installed software version using the apt package manager.
Solution
Solution
For Debian 7 'Wheezy', these problems have been fixed in version 1:2.1.7-7+deb7u2. We recommend that you upgrade your dovecot packages.