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Status published
High
CVE-2020-35679
smtpd/table.c in OpenSMTPD before 6.8.0p1 lacks a certain regfree, which...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://poolp.org/posts/2020-12-24/december-2020-opensmtpd-6.8.0p1-released-fixed-several-bugs-proposed-several-diffs-book-is-on-github/
- https://www.mail-archive.com/misc%40opensmtpd.org/msg05188.html
- https://github.com/openbsd/src/commit/79a034b4aed29e965f45a13409268290c9910043
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TYAYXRV2DM5K4RU7RHCDZSA2UF6VCTRC/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5LKTFBQCHGMVPR4IZWHQIYAPM5J3LN3J/
- https://security.gentoo.org/glsa/202105-12
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CVE-2020-35680
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Affected Vendor
opensmtpd
View all reports →Affected Software
opensmtpd, fedora
Vulnerable Versions:
0, 6.8.0, 32, 33
Timeline
Official Publish:
December 24th, 2020
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.