CVE-2019-11500

Publication date 28 August 2019

Last updated 25 August 2025

Ubuntu priority

High

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

Description

In Dovecot before 2.2.36.4 and 2.3.x before 2.3.7.2 (and Pigeonhole before 0.5.7.2), protocol processing can fail for quoted strings. This occurs because '\0' characters are mishandled, and can lead to out-of-bounds writes and remote code execution.

Status

Package Ubuntu Release Status
dovecot 19.04 disco
Fixed 1:2.3.4.1-1ubuntu2.3
18.04 LTS bionic
Fixed 1:2.2.33.2-1ubuntu4.4
16.04 LTS xenial
Fixed 1:2.2.22-1ubuntu2.11
14.04 LTS trusty
Fixed 1:2.2.9-1ubuntu2.6+esm1

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Severity score breakdown

CVSS version: CVSS v3.0

Base score 9.8 · Critical

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references

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