CVE-2020-7957
5.3
MEDIUM
CVSS 3.1
EPSS 0.51%
Description
The IMAP and LMTP components in Dovecot 2.3.9 before 2.3.9.3 mishandle snippet generation when many characters must be read to compute the snippet and a trailing > character exists. This causes a denial of service in which the recipient cannot read all of their messages.
How to fix CVE-2020-7957
To remediate CVE-2020-7957, upgrade the affected package to a fixed version below.
- Alpine/dovecot—upgrade to 2.3.10.1-r0 or later
Is CVE-2020-7957 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.3.10.1-r0
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 |