UBUNTU-CVE-2020-15917

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Source
https://ubuntu.com/security/CVE-2020-15917
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-15917.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2020-15917
Upstream
Published
2020-07-23T19:15:00Z
Modified
2025-09-08T16:46:15Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

common/session.c in Claws Mail before 3.17.6 has a protocol violation because suffix data after STARTTLS is mishandled.

References

Affected packages

Ubuntu:Pro:16.04:LTS / claws-mail

Package

Name
claws-mail
Purl
pkg:deb/ubuntu/claws-mail@3.13.2-1ubuntu1?arch=source&distro=esm-apps/xenial

Affected ranges

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

Affected versions

3.*

3.12.0-1ubuntu1
3.12.0-1ubuntu2
3.13.1-1.1ubuntu1
3.13.1-1.1ubuntu2
3.13.1-1.1ubuntu3
3.13.2-1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-acpi-notifier"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-address-keeper"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-archiver-plugin"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-attach-remover"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-attach-warner"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-bogofilter"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-bsfilter-plugin"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-clamd-plugin"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-extra-plugins"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-fancy-plugin"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-feeds-reader"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-fetchinfo-plugin"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-gdata-plugin"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-i18n"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-libravatar"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-mailmbox-plugin"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-managesieve"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-multi-notifier"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-newmail-plugin"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-pdf-viewer"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-perl-filter"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-pgpinline"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-pgpmime"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-plugins"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-python-plugin"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-smime-plugin"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-spam-report"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-spamassassin"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-tnef-parser"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-tools"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "claws-mail-vcalendar-plugin"
        },
        {
            "binary_version": "3.13.2-1ubuntu1",
            "binary_name": "libclaws-mail-dev"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / claws-mail

Package

Name
claws-mail
Purl
pkg:deb/ubuntu/claws-mail@3.16.0-1?arch=source&distro=esm-apps/bionic

Affected ranges

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

Affected versions

3.*

3.15.0-2build2
3.15.1-1
3.15.1-1ubuntu1
3.16.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-acpi-notifier"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-address-keeper"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-archiver-plugin"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-attach-remover"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-attach-warner"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-bogofilter"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-bsfilter-plugin"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-clamd-plugin"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-extra-plugins"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-feeds-reader"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-fetchinfo-plugin"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-gdata-plugin"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-i18n"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-libravatar"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-mailmbox-plugin"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-managesieve"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-multi-notifier"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-newmail-plugin"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-pdf-viewer"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-perl-filter"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-pgpinline"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-pgpmime"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-plugins"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-python-plugin"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-smime-plugin"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-spam-report"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-spamassassin"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-tnef-parser"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-tools"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "claws-mail-vcalendar-plugin"
        },
        {
            "binary_version": "3.16.0-1",
            "binary_name": "libclaws-mail-dev"
        }
    ]
}

Ubuntu:Pro:20.04:LTS / claws-mail

Package

Name
claws-mail
Purl
pkg:deb/ubuntu/claws-mail@3.17.5-2?arch=source&distro=esm-apps/focal

Affected ranges

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

Affected versions

3.*

3.17.4-1
3.17.4-1build1
3.17.4-2build2
3.17.4-2ubuntu1
3.17.5-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-acpi-notifier"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-address-keeper"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-archiver-plugin"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-attach-remover"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-attach-warner"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-bogofilter"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-bsfilter-plugin"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-clamd-plugin"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-dillo-viewer"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-extra-plugins"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-feeds-reader"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-fetchinfo-plugin"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-gdata-plugin"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-i18n"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-libravatar"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-litehtml-viewer"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-mailmbox-plugin"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-managesieve"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-multi-notifier"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-newmail-plugin"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-pdf-viewer"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-perl-filter"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-pgpinline"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-pgpmime"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-plugins"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-smime-plugin"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-spam-report"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-spamassassin"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-tnef-parser"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-tools"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "claws-mail-vcalendar-plugin"
        },
        {
            "binary_version": "3.17.5-2",
            "binary_name": "libclaws-mail-dev"
        }
    ]
}