smtpd/lka_filter.c in OpenSMTPD before 6.8.0p1, in certain configurations, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted pattern of client activity, because the filter state machine does not properly maintain the I/O channel between the SMTP engine and the filters layer.
Advisories
Source ID Title
EUVD EUVD EUVD-2020-23340 smtpd/lka_filter.c in OpenSMTPD before 6.8.0p1, in certain configurations, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted pattern of client activity, because the filter state machine does not properly maintain the I/O channel between the SMTP engine and the filters layer.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

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Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T17:09:14.815Z

Reserved: 2020-12-24T00:00:00

Link: CVE-2020-35680

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-12-24T16:15:15.600

Modified: 2024-11-21T05:27:49.970

Link: CVE-2020-35680

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses