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Vulnerability Details : CVE-2020-12673

In Dovecot before, sending a specially formatted NTLM request will crash the auth service because of an out-of-bounds read.
Publish Date : 2020-08-12 Last Update Date : 2020-10-13
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 125

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2020:3617: dovecot security update (Important) oval:com.redhat.rhsa:def:20203617 unix
RHSA-2020:3713: dovecot security update (Important) oval:com.redhat.rhsa:def:20203713 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2020-12673

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 16.04 * * * Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 18.04 * * * Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 20.04 * * * Version Details Vulnerabilities
4 OS Debian Debian Linux 9.0 * * * Version Details Vulnerabilities
5 OS Debian Debian Linux 10.0 * * * Version Details Vulnerabilities
6 Application Dovecot Dovecot * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 3
Debian Debian Linux 2
Dovecot Dovecot 1

- References For CVE-2020-12673 CONFIRM
MLIST [debian-lts-announce] 20200815 [SECURITY] [DLA 2328-1] dovecot security update
SUSE openSUSE-SU-2020:1241
SUSE openSUSE-SU-2020:1262[email protected]/message/4AAX2MJEULPVSRZOBX3PNPFSYP4FM4TT/
FEDORA FEDORA-2020-cd8b8f887b
GENTOO GLSA-202009-02[email protected]/message/XKKAL3OMG76ZZ7CIEMQP2K6KCTD2RAKE/
FEDORA FEDORA-2020-b8ebc4201e[email protected]/message/EYZU6CHA3VMYYAUCMHSCCQKJEVEIKPQ2/
FEDORA FEDORA-2020-d737c57172

- Metasploit Modules Related To CVE-2020-12673

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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