CVE-2020-35679 describes a memory leak vulnerability in OpenSMTPD versions prior to 6.8.0p1, specifically within the smtpd/table.c component. This flaw allows attackers to trigger a significant memory leak by sending messages to an OpenSMTPD instance configured to perform numerous regex lookups. With a CVSS score of 7.5 (HIGH), this vulnerability is remotely exploitable with low attack complexity, leading to high availability impact (denial of service) without requiring user interaction or privileges. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 6.8.0CPE matchmatch criteria | cpe:2.3:a:opensmtpd:opensmtpd:*:*:*:*:*:*:*:* | ||
6.8.0CPE matchmatch criteria | cpe:2.3:a:opensmtpd:opensmtpd:6.8.0:-:*:*:*:*:*:* | ||
6.8.0CPE matchmatch criteria | cpe:2.3:a:opensmtpd:opensmtpd:6.8.0:patch1-rc1:*:*:*:*:*:* | ||
32CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* | ||
33CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.