Executive Summary

Informations
Name CVE-2020-27840 First vendor Publication 2021-05-12
Vendor Cve Last vendor Modification 2021-05-26

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

A flaw was found in samba. Spaces used in a string around a domain name (DN), while supposed to be ignored, can cause invalid DN strings with spaces to instead write a zero-byte into out-of-bounds memory, resulting in a crash. The highest threat from this vulnerability is to system availability.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27840

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-125 Out-of-bounds Read

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 371
Os 2
Os 3

Sources (Detail)

Source Url
CONFIRM https://security.netapp.com/advisory/ntap-20210326-0007/
DEBIAN https://www.debian.org/security/2021/dsa-4884
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
GENTOO https://security.gentoo.org/glsa/202105-22
MISC https://bugzilla.redhat.com/show_bug.cgi?id=1941400
https://www.samba.org/samba/security/CVE-2020-27840.html
MLIST https://lists.debian.org/debian-lts-announce/2021/03/msg00036.html

Alert History

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Date Informations
2021-05-26 17:22:55
  • Multiple Updates
2021-05-22 00:22:53
  • Multiple Updates
2021-05-18 01:39:19
  • Multiple Updates
2021-05-18 01:35:53
  • Multiple Updates
2021-05-17 21:23:07
  • Multiple Updates
2021-05-12 21:23:11
  • First insertion