Vulnerability CVE-2020-35679
Published: 2020-12-24

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.

Type:

CWE-772

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Opensmtpd -> Opensmtpd 

 References:
https://github.com/openbsd/src/commit/79a034b4aed29e965f45a13409268290c9910043
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@opensmtpd.org/msg05188.html
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