Vulnerability Database

289,599

Total vulnerabilities in the database

CVE-2020-35680

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: Dec 24, 2020
  • Updated: Apr 14, 2023
  • CVE: CVE-2020-35680
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:N/I:N/A:P

CWEs:

Software From Fixed in
opensmtpd / opensmtpd 6.8.0 6.8.0.x
opensmtpd / opensmtpd - 6.8.0
opensmtpd / opensmtpd 6.8.0-patch1-rc1 6.8.0-patch1-rc1.x
fedoraproject / fedora 32 32.x
fedoraproject / fedora 33 33.x