PT-2024-21020 · Dovecot · Dovecot

Hanno Böck · Published 2024-09-06 · Updated 2024-09-06 · CVE-2024-25584

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Name of the Vulnerable Software and Affected Versions Dovecot (affected versions not specified)

Description The issue arises because Dovecot accepts the dot LF DOT LF symbol as the end of the DATA command, whereas the RFC requires it to be CR LF DOT CR LF. This discrepancy causes Dovecot to split a single email containing LF DOT LF in the middle into two separate emails when relaying to SMTP. As a result, emails with LF DOT LF are divided into two mails.

Recommendations Upgrade to the latest released version. As a temporary workaround, consider restricting the use of the affected Dovecot functionality until a patch is available.

Fix

Insufficient Verification of Data Authenticity

Weakness Enumeration

CWE-345

Related Identifiers

AZL-69869

AZL-69910

CVE-2024-25584

Affected Products

Dovecot

References · 10

• https://osv.dev/vulnerability/AZL-69869 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-25584 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-25584 · Security Note
• https://osv.dev/vulnerability/AZL-69910 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-25584 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2024-25584 · Security Note
• https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2024/oxdc-adv-2024-0001.json · Vendor Advisory
• https://twitter.com/VulmonFeeds/status/1832095460871319697 · Twitter Post
• https://t.me/cvedetector/4974 · Telegram Post
• https://twitter.com/CVEnew/status/1832079509375316388 · Twitter Post