Detections
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Echo: samba: security update to 2:4.13.13+dfsg-1

high Tenable Cloud Security Plugin ID 460631

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2021-20277)

Solution

Update the samba library and its related packages to version 2:4.13.13+dfsg-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2021-20277

Plugin Details

Severity: High

ID: 460631

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2021-20277

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/2/2026

Vulnerability Publication Date: 3/24/2021

Reference Information

CVE: CVE-2021-20277

IAVA: 2021-A-0140-S