DEBIAN-CVE-2017-2669

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Source
https://security-tracker.debian.org/tracker/CVE-2017-2669
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2017-2669.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2017-2669
Upstream
Published
2018-06-21T13:29:00Z
Modified
2025-09-30T03:54:20Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

Dovecot before version 2.2.29 is vulnerable to a denial of service. When 'dict' passdb and userdb were used for user authentication, the username sent by the IMAP/POP3 client was sent through var_expand() to perform %variable expansion. Sending specially crafted %variable fields could result in excessive memory usage causing the process to crash (and restart), or excessive CPU usage causing all authentications to hang.

References

Affected packages

Debian:11 / dovecot

Package

Name
dovecot
Purl
pkg:deb/debian/dovecot?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:2.2.27-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / dovecot

Package

Name
dovecot
Purl
pkg:deb/debian/dovecot?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:2.2.27-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / dovecot

Package

Name
dovecot
Purl
pkg:deb/debian/dovecot?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:2.2.27-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / dovecot

Package

Name
dovecot
Purl
pkg:deb/debian/dovecot?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:2.2.27-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}