CVE-2020-24386
dovecot - security update
6.8
MEDIUM
CVSS 3.1
EPSS 2.2%
Description
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).
How to fix CVE-2020-24386
To remediate CVE-2020-24386, upgrade the affected package to a fixed version below.
- Alpine/dovecot—upgrade to 2.3.13-r0 or later
- —upgrade to 1:2.3.13+dfsg1-1 or later
- —upgrade to 1:2.2.27-3+deb9u7 or later
- —upgrade to 1:2.3.4.1-5+deb10u5 or later
Is CVE-2020-24386 being exploited?
Low — EPSS is 2.2%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 2.3.13-r0
- from 0, < 1:2.3.13+dfsg1-1
- from 0, < 1:2.2.27-3+deb9u7
- from 0, < 1:2.3.4.1-5+deb10u5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.8 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N |