Executive Summary

Informations
Name CVE-2020-35680 First vendor Publication 2020-12-24
Vendor Cve Last vendor Modification 2023-11-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 7.5
Base Score 7.5 Environmental Score 7.5
impact SubScore 3.6 Temporal Score 7.5
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35680

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-476 NULL Pointer Dereference

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 3
Os 2

Sources (Detail)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://www.mail-archive.com/misc%40opensmtpd.org/msg05188.html
Source Url
GENTOO https://security.gentoo.org/glsa/202105-12
MISC https://github.com/openbsd/src/commit/6c3220444ed06b5796dedfd53a0f4becd903c0d1
https://poolp.org/posts/2020-12-24/december-2020-opensmtpd-6.8.0p1-released-f...

Alert History

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Date Informations
2023-11-07 21:36:10
  • Multiple Updates
2022-09-02 09:27:32
  • Multiple Updates
2021-05-26 17:23:02
  • Multiple Updates
2021-05-04 13:52:19
  • Multiple Updates
2021-04-22 03:04:08
  • Multiple Updates
2021-03-26 12:34:54
  • Multiple Updates
2021-01-30 09:22:54
  • Multiple Updates
2020-12-29 21:23:24
  • Multiple Updates
2020-12-28 17:22:48
  • Multiple Updates
2020-12-24 21:23:20
  • First insertion