Vulnerability · Published Jun 28, 2021 · Assigned by mitre
CVE-2021-33515
Medium 4.8
In plain English
A medium-severity security flaw in the dovecot package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.9% (higher than 87% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)4.8Medium
Exploit odds (30 days)2.9%top 13.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | dovecot | 1:2.3.16-2.el8 | ALSA-2022:1950 |
| AlmaLinux:8 | dovecot-devel | 1:2.3.16-2.el8 | ALSA-2022:1950 |
| AlmaLinux:8 | dovecot-mysql | 1:2.3.16-2.el8 | ALSA-2022:1950 |
| AlmaLinux:8 | dovecot-pgsql | 1:2.3.16-2.el8 | ALSA-2022:1950 |
| AlmaLinux:8 | dovecot-pigeonhole | 1:2.3.16-2.el8 | ALSA-2022:1950 |
| Alpine:v3.20 | dovecot | 2.3.15-r0 | ALPINE-CVE-2021-33515 |
| Alpine:v3.21 | dovecot | 2.3.15-r0 | ALPINE-CVE-2021-33515 |
| Alpine:v3.22 | dovecot | 2.3.15-r0 | ALPINE-CVE-2021-33515 |
| Alpine:v3.23 | dovecot | 2.3.15-r0 | ALPINE-CVE-2021-33515 |
| Alpine:v3.24 | dovecot | 2.3.15-r0 | ALPINE-CVE-2021-33515 |
| Debian:12 | dovecot | 1:2.3.13+dfsg1-2 | DEBIAN-CVE-2021-33515 |
| Debian:13 | dovecot | 1:2.3.13+dfsg1-2 | DEBIAN-CVE-2021-33515 |
| Debian:14 | dovecot | 1:2.3.13+dfsg1-2 | DEBIAN-CVE-2021-33515 |
| Rocky Linux:8 | dovecot | 1:2.3.16-2.el8 | RLSA-2022:1950 |
Affected products (as reported)
References
- https://dovecot.org/security x_refsource_MISC
- https://www.openwall.com/lists/oss-security/2021/06/28/2 x_refsource_CONFIRM
- FEDORA-2021-208340a217 vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-891c1ab1ac vendor-advisory, x_refsource_FEDORA
- GLSA-202107-41 vendor-advisory, x_refsource_GENTOO
- [debian-lts-announce] 20220927 [SECURITY] [DLA 3122-1] dovecot security update mailing-list, x_refsource_MLIST