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Test ID:1.3.6.1.4.1.25623.1.0.892328
Category:Debian Local Security Checks
Title:Debian LTS: Security Advisory for dovecot (DLA-2328-1)
Summary:The remote host is missing an update for the 'dovecot'; package(s) announced via the DLA-2328-1 advisory.
Description:Summary:
The remote host is missing an update for the 'dovecot'
package(s) announced via the DLA-2328-1 advisory.

Vulnerability Insight:
Several vulnerabilities have been discovered in the Dovecot email
server.

CVE-2020-12100

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

CVE-2020-12673

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

CVE-2020-12674

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

Affected Software/OS:
'dovecot' package(s) on Debian Linux.

Solution:
For Debian 9 stretch, these problems have been fixed in version
1:2.2.27-3+deb9u6.

We recommend that you upgrade your dovecot packages.

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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