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Ubuntu 14.04 ESM USN-4674-2 Moderate: Dovecot DoS Exploit Information

ubuntu
Calendar Grey January 4, 2021
Dist Ubuntu Esm H88
A security flaw in Dovecot for Ubuntu 14.04 ESM has the potential to cause a denial of service through specially created MIME types. It is advisable to apply updates for enhanced security.
Dovecot could be made to denial of service if it received a specially crafted MIME.

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)

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu dos threat dovecot Ubuntu 14.04 MIME handling mime handling

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://ubuntu.com/security/notices/USN-4674-2

https://ubuntu.com/security/notices/USN-4674-1

CVE-2020-25275

January 04, 2021

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu dos threat dovecot Ubuntu 14.04 MIME handling mime handling

Package Information

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