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CVE-2019-11499

Publication date 30 April 2019

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

In the IMAP Server in Dovecot 2.3.3 through 2.3.5.2, the submission-login component crashes if AUTH PLAIN is attempted over a TLS secured channel with an unacceptable authentication message.

Read the notes from the security team

Status

Package Ubuntu Release Status
dovecot 19.04 disco
Fixed 1:2.3.4.1-1ubuntu2.2
18.10 cosmic
Fixed 1:2.3.2.1-1ubuntu3.4
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected

Notes

mdeslaur

affects 2.3.0 - 2.3.5.2

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-3961-1
    • Dovecot vulnerabilities
    • 30 April 2019

Other references