high
7.5
CWE
125
Advisory Published
Updated

CVE-2020-12674

First published: Wed Aug 12 2020(Updated: )

In Dovecot before 2.3.11.3, sending a specially formatted RPA request will crash the auth service because a length of zero is mishandled.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
ubuntu/dovecot<2.3.11
2.3.11
ubuntu/dovecot<1:2.2.33.2-1ubuntu4.6
1:2.2.33.2-1ubuntu4.6
ubuntu/dovecot<1:2.3.7.2-1ubuntu3.2
1:2.3.7.2-1ubuntu3.2
ubuntu/dovecot<1:2.2.9-1ubuntu2.6+
1:2.2.9-1ubuntu2.6+
ubuntu/dovecot<1:2.2.22-1ubuntu2.13
1:2.2.22-1ubuntu2.13
<2.3.11.3
=9.0
=10.0
=14.04
=16.04
=18.04
=20.04
=31
=32
=33
Dovecot Dovecot<2.3.11.3
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=20.04
Fedoraproject Fedora=31
Fedoraproject Fedora=32
Fedoraproject Fedora=33
debian/dovecot
1:2.3.4.1-5+deb10u6
1:2.3.4.1-5+deb10u7
1:2.3.13+dfsg1-2+deb11u1
1:2.3.19.1+dfsg1-2.1
1:2.3.21+dfsg1-2

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2020-12674?

    CVE-2020-12674 is a vulnerability in Dovecot versions prior to 2.3.11.3 that allows an attacker to crash the auth service by sending a specially formatted RPA request.

  • What is the severity of CVE-2020-12674?

    CVE-2020-12674 has a severity score of 7.5 (high).

  • How does CVE-2020-12674 affect Dovecot?

    CVE-2020-12674 affects Dovecot versions before 2.3.11.3.

  • How can I fix CVE-2020-12674?

    To fix CVE-2020-12674, you should update Dovecot to version 2.3.11.3 or later.

  • Where can I find more information about CVE-2020-12674?

    You can find more information about CVE-2020-12674 at the following references: http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00048.html, http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00059.html, and https://dovecot.org/security.

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