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Test ID:1.3.6.1.4.1.25623.1.0.844535
Category:Ubuntu Local Security Checks
Title:Ubuntu: Security Advisory for dovecot (USN-4456-1)
Summary:The remote host is missing an update for the 'dovecot'; package(s) announced via the USN-4456-1 advisory.
Description:Summary:
The remote host is missing an update for the 'dovecot'
package(s) announced via the USN-4456-1 advisory.

Vulnerability Insight:
It was discovered that Dovecot incorrectly handled deeply nested MIME
parts. A remote attacker could possibly use this issue to cause Dovecot to
consume resources, resulting in a denial of service. (CVE-2020-12100)

It was discovered that Dovecot incorrectly handled memory when using NTLM.
A remote attacker could possibly use this issue to cause Dovecot to crash,
resulting in a denial of service. (CVE-2020-12673)

It was discovered that the Dovecot RPA mechanism incorrectly handled
zero-length messages. A remote attacker could possibly use this issue to
cause Dovecot to crash, resulting in a denial of service. (CVE-2020-12674)

Affected Software/OS:
'dovecot' package(s) on Ubuntu 20.04 LTS, Ubuntu 18.04 LTS, Ubuntu 16.04 LTS.

Solution:
Please install the updated package(s).

CVSS Score:
5.0

CVSS Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:P

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2020-12100
Common Vulnerability Exposure (CVE) ID: CVE-2020-12673
Common Vulnerability Exposure (CVE) ID: CVE-2020-12674
CopyrightCopyright (C) 2020 Greenbone Networks GmbH

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