CVE-2020-35679
7.5
HIGH
CVSS 3.1
EPSS 2.4%
Description
smtpd/table.c in OpenSMTPD before 6.8.0p1 lacks a certain regfree, which might allow attackers to trigger a "very significant" memory leak via messages to an instance that performs many regex lookups.
How to fix CVE-2020-35679
To remediate CVE-2020-35679, upgrade the affected package to a fixed version below.
- Alpine/opensmtpd—upgrade to 6.6.4p1-r1 or later
- Debian/opensmtpd—upgrade to 6.8.0p2-1 or later
Is CVE-2020-35679 being exploited?
Low — EPSS is 2.4%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 6.6.4p1-r1
- from 0, < 6.8.0p2-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |