CVE-2020-35679

HIGH

OpenSMTPD < 6.8.0p1 - Memory Leak via Regex Lookup

Title source: llm
STIX 2.1

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.

Scores

CVSS v3 7.5
EPSS 0.0284
EPSS Percentile 84.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-401
Status published
Products (4)
fedoraproject/fedora 32
fedoraproject/fedora 33
opensmtpd/opensmtpd 6.8.0 (2 CPE variants)
opensmtpd/opensmtpd < 6.8.0
Published Dec 24, 2020
Tracked Since Feb 18, 2026