USN-3258-2

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Source

https://ubuntu.com/security/notices/USN-3258-2

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3258-2.json

JSON Data

https://api.osv.dev/v1/vulns/USN-3258-2

Related

Published

2017-04-11T19:41:41.507731Z

Modified

2017-04-11T19:41:41.507731Z

Summary

dovecot regression

Details

USN-3258-1 intended to fix a vulnerability in Dovecot. Further investigation revealed that only Dovecot versions 2.2.26 and newer were affected by the vulnerability. Additionally, the change introduced a regression when Dovecot was configured to use the "dict" authentication database. This update reverts the change. We apologize for the inconvenience.

Original advisory details:

It was discovered that Dovecot incorrectly handled some usernames. An attacker could possibly use this issue to cause Dovecot to hang or crash, resulting in a denial of service.

References

Affected packages

Ubuntu:16.04:LTS / dovecot

Package

Name: dovecot
Purl: pkg:deb/ubuntu/dovecot@1:2.2.22-1ubuntu2.4?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:2.2.22-1ubuntu2.4

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

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "dovecot-core",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-core-dbgsym",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-dbg",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-dev",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-dev-dbgsym",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-gssapi",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-gssapi-dbgsym",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-imapd",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-imapd-dbgsym",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-ldap",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-ldap-dbgsym",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-lmtpd",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-lmtpd-dbgsym",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-lucene",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-lucene-dbgsym",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-managesieved",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-managesieved-dbgsym",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-mysql",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-mysql-dbgsym",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-pgsql",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-pgsql-dbgsym",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-pop3d",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-pop3d-dbgsym",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-sieve",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-sieve-dbgsym",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-solr",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-solr-dbgsym",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-sqlite",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "dovecot-sqlite-dbgsym",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        },
        {
            "binary_name": "mail-stack-delivery",
            "binary_version": "1:2.2.22-1ubuntu2.4"
        }
    ],
    "availability": "No subscription required"
}