Debian Security Advisory DSA-4745-1 Dovecot


Debian security advisory DSA-4745-1 Dovecot.

Several vulnerabilities have been discovered in the Dovecot email server.

Debian security advisory DSA-4745-1 Dovecot.

Package: dovecot

  • CVE-2020-12100
  • CVE-2020-12673
  • CVE-2020-12674

Several vulnerabilities have been discovered in the Dovecot email server.

Receiving mail with deeply nested MIME parts leads to resource exhaustion as Dovecot attempts to parse it.

Dovecot's NTLM implementation does not correctly check message buffer size, which leads to a crash when reading past allocation.

Dovecot's RPA mechanism implementation accepts zero-length message,which leads to assert-crash later on.

For the stable distribution Debian 10 "Buster", these problems have been fixed in version 1:

We recommend that you upgrade your dovecot packages.

For the detailed security status of dovecot please refer to its security tracker page.

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