UBUNTU-CVE-2020-28200

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Source
https://ubuntu.com/security/CVE-2020-28200
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-28200.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-28200
Upstream
Published
2021-06-21T12:00:00Z
Modified
2025-09-08T16:46:28Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

The Sieve engine in Dovecot before 2.3.15 allows Uncontrolled Resource Consumption, as demonstrated by a situation with a complex regular expression for the regex extension.

References

Affected packages

Ubuntu:Pro:14.04:LTS / dovecot

Package

Name
dovecot
Purl
pkg:deb/ubuntu/dovecot@1:2.2.9-1ubuntu2.6+esm4?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1:2.*

1:2.1.7-7ubuntu3
1:2.2.9-1ubuntu1
1:2.2.9-1ubuntu2
1:2.2.9-1ubuntu2.1
1:2.2.9-1ubuntu2.3
1:2.2.9-1ubuntu2.4
1:2.2.9-1ubuntu2.5
1:2.2.9-1ubuntu2.6
1:2.2.9-1ubuntu2.6+esm2
1:2.2.9-1ubuntu2.6+esm3
1:2.2.9-1ubuntu2.6+esm4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:2.2.9-1ubuntu2.6+esm4",
            "binary_name": "dovecot-core"
        },
        {
            "binary_version": "1:2.2.9-1ubuntu2.6+esm4",
            "binary_name": "dovecot-dev"
        },
        {
            "binary_version": "1:2.2.9-1ubuntu2.6+esm4",
            "binary_name": "dovecot-gssapi"
        },
        {
            "binary_version": "1:2.2.9-1ubuntu2.6+esm4",
            "binary_name": "dovecot-imapd"
        },
        {
            "binary_version": "1:2.2.9-1ubuntu2.6+esm4",
            "binary_name": "dovecot-ldap"
        },
        {
            "binary_version": "1:2.2.9-1ubuntu2.6+esm4",
            "binary_name": "dovecot-lmtpd"
        },
        {
            "binary_version": "1:2.2.9-1ubuntu2.6+esm4",
            "binary_name": "dovecot-managesieved"
        },
        {
            "binary_version": "1:2.2.9-1ubuntu2.6+esm4",
            "binary_name": "dovecot-mysql"
        },
        {
            "binary_version": "1:2.2.9-1ubuntu2.6+esm4",
            "binary_name": "dovecot-pgsql"
        },
        {
            "binary_version": "1:2.2.9-1ubuntu2.6+esm4",
            "binary_name": "dovecot-pop3d"
        },
        {
            "binary_version": "1:2.2.9-1ubuntu2.6+esm4",
            "binary_name": "dovecot-sieve"
        },
        {
            "binary_version": "1:2.2.9-1ubuntu2.6+esm4",
            "binary_name": "dovecot-solr"
        },
        {
            "binary_version": "1:2.2.9-1ubuntu2.6+esm4",
            "binary_name": "dovecot-sqlite"
        },
        {
            "binary_version": "1:2.2.9-1ubuntu2.6+esm4",
            "binary_name": "mail-stack-delivery"
        }
    ]
}

Ubuntu:Pro:16.04:LTS / dovecot

Package

Name
dovecot
Purl
pkg:deb/ubuntu/dovecot@1:2.2.22-1ubuntu2.14?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1:2.*

1:2.2.18-2ubuntu2
1:2.2.22-1ubuntu1
1:2.2.22-1ubuntu2
1:2.2.22-1ubuntu2.1
1:2.2.22-1ubuntu2.2
1:2.2.22-1ubuntu2.3
1:2.2.22-1ubuntu2.4
1:2.2.22-1ubuntu2.6
1:2.2.22-1ubuntu2.7
1:2.2.22-1ubuntu2.8
1:2.2.22-1ubuntu2.9
1:2.2.22-1ubuntu2.10
1:2.2.22-1ubuntu2.11
1:2.2.22-1ubuntu2.12
1:2.2.22-1ubuntu2.13
1:2.2.22-1ubuntu2.14

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:2.2.22-1ubuntu2.14",
            "binary_name": "dovecot-core"
        },
        {
            "binary_version": "1:2.2.22-1ubuntu2.14",
            "binary_name": "dovecot-dev"
        },
        {
            "binary_version": "1:2.2.22-1ubuntu2.14",
            "binary_name": "dovecot-gssapi"
        },
        {
            "binary_version": "1:2.2.22-1ubuntu2.14",
            "binary_name": "dovecot-imapd"
        },
        {
            "binary_version": "1:2.2.22-1ubuntu2.14",
            "binary_name": "dovecot-ldap"
        },
        {
            "binary_version": "1:2.2.22-1ubuntu2.14",
            "binary_name": "dovecot-lmtpd"
        },
        {
            "binary_version": "1:2.2.22-1ubuntu2.14",
            "binary_name": "dovecot-lucene"
        },
        {
            "binary_version": "1:2.2.22-1ubuntu2.14",
            "binary_name": "dovecot-managesieved"
        },
        {
            "binary_version": "1:2.2.22-1ubuntu2.14",
            "binary_name": "dovecot-mysql"
        },
        {
            "binary_version": "1:2.2.22-1ubuntu2.14",
            "binary_name": "dovecot-pgsql"
        },
        {
            "binary_version": "1:2.2.22-1ubuntu2.14",
            "binary_name": "dovecot-pop3d"
        },
        {
            "binary_version": "1:2.2.22-1ubuntu2.14",
            "binary_name": "dovecot-sieve"
        },
        {
            "binary_version": "1:2.2.22-1ubuntu2.14",
            "binary_name": "dovecot-solr"
        },
        {
            "binary_version": "1:2.2.22-1ubuntu2.14",
            "binary_name": "dovecot-sqlite"
        },
        {
            "binary_version": "1:2.2.22-1ubuntu2.14",
            "binary_name": "mail-stack-delivery"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / dovecot

Package

Name
dovecot
Purl
pkg:deb/ubuntu/dovecot@1:2.2.33.2-1ubuntu4.8?arch=source&distro=esm-infra/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1:2.*

1:2.2.27-3ubuntu1
1:2.2.33.2-1ubuntu1
1:2.2.33.2-1ubuntu2
1:2.2.33.2-1ubuntu3
1:2.2.33.2-1ubuntu4
1:2.2.33.2-1ubuntu4.1
1:2.2.33.2-1ubuntu4.2
1:2.2.33.2-1ubuntu4.3
1:2.2.33.2-1ubuntu4.4
1:2.2.33.2-1ubuntu4.5
1:2.2.33.2-1ubuntu4.6
1:2.2.33.2-1ubuntu4.7
1:2.2.33.2-1ubuntu4.8

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:2.2.33.2-1ubuntu4.8",
            "binary_name": "dovecot-core"
        },
        {
            "binary_version": "1:2.2.33.2-1ubuntu4.8",
            "binary_name": "dovecot-dev"
        },
        {
            "binary_version": "1:2.2.33.2-1ubuntu4.8",
            "binary_name": "dovecot-gssapi"
        },
        {
            "binary_version": "1:2.2.33.2-1ubuntu4.8",
            "binary_name": "dovecot-imapd"
        },
        {
            "binary_version": "1:2.2.33.2-1ubuntu4.8",
            "binary_name": "dovecot-ldap"
        },
        {
            "binary_version": "1:2.2.33.2-1ubuntu4.8",
            "binary_name": "dovecot-lmtpd"
        },
        {
            "binary_version": "1:2.2.33.2-1ubuntu4.8",
            "binary_name": "dovecot-managesieved"
        },
        {
            "binary_version": "1:2.2.33.2-1ubuntu4.8",
            "binary_name": "dovecot-mysql"
        },
        {
            "binary_version": "1:2.2.33.2-1ubuntu4.8",
            "binary_name": "dovecot-pgsql"
        },
        {
            "binary_version": "1:2.2.33.2-1ubuntu4.8",
            "binary_name": "dovecot-pop3d"
        },
        {
            "binary_version": "1:2.2.33.2-1ubuntu4.8",
            "binary_name": "dovecot-sieve"
        },
        {
            "binary_version": "1:2.2.33.2-1ubuntu4.8",
            "binary_name": "dovecot-solr"
        },
        {
            "binary_version": "1:2.2.33.2-1ubuntu4.8",
            "binary_name": "dovecot-sqlite"
        },
        {
            "binary_version": "1:2.2.33.2-1ubuntu4.8",
            "binary_name": "mail-stack-delivery"
        }
    ]
}

Ubuntu:Pro:20.04:LTS / dovecot

Package

Name
dovecot
Purl
pkg:deb/ubuntu/dovecot@1:2.3.7.2-1ubuntu3.7?arch=source&distro=esm-infra/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1:2.*

1:2.3.4.1-5ubuntu3
1:2.3.7.2-1ubuntu1
1:2.3.7.2-1ubuntu2
1:2.3.7.2-1ubuntu3
1:2.3.7.2-1ubuntu3.1
1:2.3.7.2-1ubuntu3.2
1:2.3.7.2-1ubuntu3.3
1:2.3.7.2-1ubuntu3.4
1:2.3.7.2-1ubuntu3.5
1:2.3.7.2-1ubuntu3.6
1:2.3.7.2-1ubuntu3.7

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.7",
            "binary_name": "dovecot-auth-lua"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.7",
            "binary_name": "dovecot-core"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.7",
            "binary_name": "dovecot-dev"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.7",
            "binary_name": "dovecot-gssapi"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.7",
            "binary_name": "dovecot-imapd"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.7",
            "binary_name": "dovecot-ldap"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.7",
            "binary_name": "dovecot-lmtpd"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.7",
            "binary_name": "dovecot-lucene"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.7",
            "binary_name": "dovecot-managesieved"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.7",
            "binary_name": "dovecot-mysql"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.7",
            "binary_name": "dovecot-pgsql"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.7",
            "binary_name": "dovecot-pop3d"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.7",
            "binary_name": "dovecot-sieve"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.7",
            "binary_name": "dovecot-solr"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.7",
            "binary_name": "dovecot-sqlite"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.7",
            "binary_name": "dovecot-submissiond"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.7",
            "binary_name": "mail-stack-delivery"
        }
    ]
}