CVE-2020-10958
5.3
MEDIUM
CVSS 3.1
EPSS 1.5%
Description
In Dovecot before 2.3.10.1, a crafted SMTP/LMTP message triggers an unauthenticated use-after-free bug in submission-login, submission, or lmtp, and can lead to a crash under circumstances involving many newlines after a command.
How to fix CVE-2020-10958
To remediate CVE-2020-10958, upgrade the affected package to a fixed version below.
- Alpine/dovecot—upgrade to 2.3.10.1-r0 or later
- Debian/dovecot—upgrade to 1:2.3.10.1+dfsg1-1 or later
Is CVE-2020-10958 being exploited?
Low — EPSS is 1.5%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2.3.10.1-r0
- from 0, < 1:2.3.10.1+dfsg1-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |