CVE-2020-24386
Publication date 4 January 2021
Last updated 24 July 2024
Ubuntu priority
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).
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| dovecot | ||
| 20.04 LTS focal |
Fixed 1:2.3.7.2-1ubuntu3.3
|
|
| 18.04 LTS bionic |
Fixed 1:2.2.33.2-1ubuntu4.7
|
|
| 16.04 LTS xenial |
Not affected
|
|
| 14.04 LTS trusty |
Not affected
|
Notes
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
6.8 · Medium
|
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N |
References
Related Ubuntu Security Notices (USN)
- USN-4674-1
- Dovecot vulnerabilities
- 4 January 2021