Bug 252472 - security/vuxml document vulnerability in mail/dovecot lower than 2.3.13 (CVE-2020-24386)
Summary: security/vuxml document vulnerability in mail/dovecot lower than 2.3.13 (CVE-...
Status: Open
Alias: None
Product: Ports & Packages
Classification: Unclassified
Component: Individual Port(s) (show other bugs)
Version: Latest
Hardware: Any Any
: Normal Affects Many People
Assignee: Larry Rosenman
URL:
Keywords: security
Depends on:
Blocks:
 
Reported: 2021-01-06 14:26 UTC by thomas
Modified: 2023-04-10 18:45 UTC (History)
2 users (show)

See Also:
bugzilla: maintainer-feedback? (ler)

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Description thomas 2021-01-06 14:26:01 UTC 
There was an vulnerability in mail/dovecot 2.3.12 and prior [1] 
There is a PR for 2.3.13 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=252415

It passes 'make validate' for me:
<vuxml xmlns="http://www.vuxml.org/apps/vuxml-1">
  <vuln vid="424db8a1-5027-11eb-a462-000e0c331e98">
    <topic>mail/dovecot -- vulnerability</topic>
    <affects>
      <package>
        <name>dovecot</name>
        <range><lt>2.3.13</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
        <p>Aki Tuomi reports:</p>
        <blockquote cite="https://dovecot.org/pipermail/dovecot-news/2021-January/000450.html">
          <p>An issue was discovered in Dovecot before 2.3.13. By using IMAP IDLE, an authenticated attacker can trigger unhibernation via attacker-controlled parameters, leading to access to other users' email messages (and path disclosure).</p>
        </blockquote>
      </body>
    </description>
    <references>
      <url>https://dovecot.org/pipermail/dovecot-news/2021-January/000448.html</url>
      <cvename>CVE-2020-24386</cvename>
    </references>
    <dates>
      <discovery>2020-08-17</discovery>
      <entry>2021-01-06</entry>
    </dates>
  </vuln>



[1] Details about the vulnerability:
https://dovecot.org/pipermail/dovecot-news/2021-January/000450.html:

Open-Xchange Security Advisory 2021-01-04

Product: Dovecot
Vendor: OX Software GmbH
Internal reference: DOP-2009 (Bug ID)
Vulnerability type: CWE-150: Improper Neutralization of Escape, Meta, or
Control Sequences
Vulnerable version: 2.2.26-2.3.11.3
Vulnerable component: imap
Report confidence: Confirmed
Solution status: Fixed by Vendor
Fixed version: 2.3.13
Vendor notification: 2020-08-17
Solution date: 2020-08-27
Public disclosure: 2021-01-04
CVE reference: CVE-2020-24386
CVSS: 8.2 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N)

Vulnerability Details:

When imap hibernation is active, an attacker can cause Dovecot to
discover file
system directory structure and access other users' emails using
specially crafted
command. The attacker must have valid credentials to access the mail server.

Risk:

Attacker can access other users' emails and filesystem information.

Workaround:

Operators can choose to disable IMAP hibernation. IMAP hibernation is
not on by
default. To ensure imap hibernation is disabled, make sure
imap_hibernate_timeout
is set to 0 or unset.

Solution:

Operators should update to 2.3.13 or later version.