CVE-2020-35679

Published: 24 December 2020

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.

Priority

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package	Release	Status
opensmtpd Launchpad, Ubuntu, Debian	bionic	Not vulnerable (code not present)
	focal	Needed
	groovy	Ignored (end of life)
	hirsute	Ignored (end of life)
	impish	Ignored (end of life)
	jammy	Needed
	kinetic	Ignored (end of life, was needed)
	lunar	Ignored (end of life, was needed)
	mantic	Ignored (end of life, was needed)
	noble	Needed
	trusty	Needs triage
	upstream	Needs triage
	xenial	Not vulnerable (code not present)

Severity score breakdown

Parameter	Value
Base score	7.5
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Bugs

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=978038

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