VDB
CVE-2020-35679
CVE-2020-35679
PUBLISHED
CVSS 7.5 HIGH
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.
EPSS 2.79% · 86.3th percentile
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
2.79%
86.3th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:25.10 | opensmtpd | 0, 7.5.0p0-1, * |
| Ubuntu:Pro:14.04:LTS | opensmtpd | 0, 5.3.3p1-4, 5.4.1p1-1 |
| Ubuntu:24.04:LTS | opensmtpd | 7.3.0p1-1, *, 7.4.0p1-1build4 |
| Ubuntu:22.04:LTS | opensmtpd | *, 6.8.0p2-4, 6.8.0p2-4build1 |
| Ubuntu:20.04:LTS | opensmtpd | 6.6.2p1-1, 6.6.1p1-5, 6.6.1p1-4 |
Timeline
- Dec 24, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Oct 27, 2021 EPSS Score
- Dec 29, 2021 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 2, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- Jul 6, 2022 EPSS Score
- Sep 7, 2022 EPSS Score
- Jan 11, 2023 EPSS Score
- Mar 7, 2023 EPSS Score
References
- https://www.mail-archive.com/misc@opensmtpd.org/msg05188.html third-party-advisory
- https://poolp.org/posts/2020-12-24/december-2020-opensmtpd-6.8.0p1-released-fixed-several-bugs-proposed-several-diffs-book-is-on-github/ third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-35679 third-party-advisory
- https://ubuntu.com/security/CVE-2020-35679 advisory
- https://github.com/openbsd/src/commit/79a034b4aed29e965f45a13409268290c9910043 fix