Alpine: samba: security update to 4.12.14-r0

high Tenable Cloud Security Plugin ID 407063

Description

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

- 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.
(CVE-2020-27840)

- 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)

Plugin Details

Severity: High

ID: 407063

Version: Revision 1.25

Type: Local

Family: Alpine Linux Local Security Checks

Published: 10/31/2023

Updated: 7/2/2026

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

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

Vulnerability Publication Date: 3/24/2021

Reference Information

CVE: CVE-2020-27840, CVE-2021-20277

IAVA: 2021-A-0140-S

Detections

Analytics