Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2021-20277 First vendor Publication 2021-05-12
Vendor Cve Last vendor Modification 2022-08-05

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's libldb. Multiple, consecutive leading spaces in an LDAP attribute can lead to an out-of-bounds memory write, leading to a crash of the LDAP server process handling the request. The highest threat from this vulnerability is to system availability.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20277

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-787 Out-of-bounds Write (CWE/SANS Top 25)

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=1941402
https://www.samba.org/samba/security/CVE-2021-20277.html
MLIST https://lists.debian.org/debian-lts-announce/2021/03/msg00036.html

Alert History

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Date Informations
2022-10-11 13:03:32
  • Multiple Updates
2022-10-11 01:21:22
  • Multiple Updates
2022-08-05 21:27:39
  • Multiple Updates
2021-05-26 17:22:55
  • Multiple Updates
2021-05-20 21:23:13
  • Multiple Updates
2021-05-18 01:39:19
  • Multiple Updates
2021-05-18 01:38:22
  • Multiple Updates
2021-05-17 21:23:07
  • Multiple Updates
2021-05-12 21:23:12
  • First insertion