CVE-2020-12100
Published: 12 August 2020
In Dovecot before 2.3.11.3, uncontrolled recursion in submission, lmtp, and lda allows remote attackers to cause a denial of service (resource consumption) via a crafted e-mail message with deeply nested MIME parts.
Notes
| Author | Note |
|---|---|
| leosilva | marking precise as ignored since we won't fix it version in that release is quite old and the backports could possibly cause serious regressions. |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
dovecot Launchpad, Ubuntu, Debian |
bionic |
Released
(1:2.2.33.2-1ubuntu4.6)
|
| focal |
Released
(1:2.3.7.2-1ubuntu3.2)
|
|
| trusty |
Released
(1:2.2.9-1ubuntu2.6+esm3)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| upstream |
Released
(2.3.11)
|
|
| xenial |
Released
(1:2.2.22-1ubuntu2.13)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |