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vulnerability
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CVE-2021-33515
Component Overview
Vulnerability Overview
Name
CVE-2021-33515
Source
NVD (
link
)
Debian (
link
)
Description
The submission service in Dovecot before 2.3.15 allows STARTTLS command injection in lib-smtp. Sensitive information can be redirected to an attacker-controlled address.
CWEs
CWE-77
Published Date
Jun 28, 2021
Updated Date
Jun 17, 2026
Workaround
-
Advisories
https://dovecot.org/security
Vendor Advisory
https://lists.debian.org/debian-lts-announce/2022/09/msg00032.html
Mailing List
https://security.gentoo.org/glsa/202107-41
Third Party Advisory
https://www.openwall.com/lists/oss-security/2021/06/28/2
Mailing List
https://dovecot.org/security
Vendor Advisory
https://lists.debian.org/debian-lts-announce/2022/09/msg00032.html
Mailing List
https://security.gentoo.org/glsa/202107-41
Third Party Advisory
https://www.openwall.com/lists/oss-security/2021/06/28/2
Mailing List
Analysis
#
Affected Component
Analysis
dovecot
Patched
Vulnerability Ratings
#
4.8
CVSSv31
5.8
CVSSv2
Others affected components
#
Name
Project
Project Version
Version
Status
dovecot
buildroot
2025.02.x
2.3.21.1
Not Affected
dovecot
buildroot
master
2.3.21.1
Not Affected
dovecot
openwrt
master
2.3.21-r1
Not Affected
dovecot
openwrt
openwrt-25.12
2.3.21-r1
Not Affected
dovecot
yocto
master
2.4.4
Not Affected
dovecot
yocto
scarthgap
2.3.21.1
Not Affected
Resolved with patches
#
dovecot (yocto:kirkstone)
#
Title
Author
Resolve
1
lib-smtp: smtp-server-connection - Fix STARTTLS command
Stephan Bosch <stephan.bosch@open-xchange.com>
CVE-2021-33515