UBUNTU-CVE-2020-10958

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Source
https://ubuntu.com/security/CVE-2020-10958
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-10958.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-10958
Upstream
Downstream
Related
Published
2020-05-18T12:00:00Z
Modified
2025-09-08T16:46:03Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • 5.3 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

In Dovecot before 2.3.10.1, a crafted SMTP/LMTP message triggers an unauthenticated use-after-free bug in submission-login, submission, or lmtp, and can lead to a crash under circumstances involving many newlines after a command.

References

Affected packages

Ubuntu:20.04:LTS / dovecot

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:2.3.7.2-1ubuntu3.1

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.1",
            "binary_name": "dovecot-auth-lua"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.1",
            "binary_name": "dovecot-core"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.1",
            "binary_name": "dovecot-dev"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.1",
            "binary_name": "dovecot-gssapi"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.1",
            "binary_name": "dovecot-imapd"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.1",
            "binary_name": "dovecot-ldap"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.1",
            "binary_name": "dovecot-lmtpd"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.1",
            "binary_name": "dovecot-lucene"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.1",
            "binary_name": "dovecot-managesieved"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.1",
            "binary_name": "dovecot-mysql"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.1",
            "binary_name": "dovecot-pgsql"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.1",
            "binary_name": "dovecot-pop3d"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.1",
            "binary_name": "dovecot-sieve"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.1",
            "binary_name": "dovecot-solr"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.1",
            "binary_name": "dovecot-sqlite"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.1",
            "binary_name": "dovecot-submissiond"
        },
        {
            "binary_version": "1:2.3.7.2-1ubuntu3.1",
            "binary_name": "mail-stack-delivery"
        }
    ],
    "availability": "No subscription required"
}