Description
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.
Published: 2020-12-24
Score: 7.5 High
EPSS: 4.2% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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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.
History

No history.

Subscriptions

Fedoraproject Fedora
Opensmtpd Opensmtpd
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

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

Reserved: 2020-12-24T00:00:00.000Z

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