Alibaba Cloud Linux 3 : 0028: libldb (ALINUX3-SA-2021:0028)

high Nessus Plugin ID 236527

Synopsis

The remote Alibaba Cloud Linux host is missing one or more security updates.

Description

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2021:0028 advisory.

Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities:

CVE-2020-10730:
A NULL pointer dereference, or possible use-after-free flaw was found in Samba AD LDAP server in versions before 4.10.17, before 4.11.11 and before 4.12.4. Although some versions of Samba shipped with Red Hat Enterprise Linux do not support Samba in AD mode, the affected code is shipped with the libldb package.
This flaw allows an authenticated user to possibly trigger a use-after-free or NULL pointer dereference.
The highest threat from this vulnerability is to system availability.

CVE-2021-20277:
** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided.

Tenable has extracted the preceding description block directly from the Alibaba Cloud Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

Plugin Details

Severity: High

ID: 236527

File Name: alinux3_sa_2021-0028.nasl

Version: 1.1

Type: local

Family: Alibaba Cloud Linux Local Security Checks

Published: 5/14/2025

Updated: 5/14/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

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

CPE: p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:ldb-tools, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libldb-devel, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libldb-debugsource, cpe:/o:alibabacloud:alibaba_cloud_linux_3, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:python3-ldb-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:python3-ldb-devel, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libldb-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:ldb-tools-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libldb, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:python3-ldb

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/Alibaba/release, Host/Alibaba/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 4/15/2021

Vulnerability Publication Date: 7/2/2020

Reference Information

CVE: CVE-2020-10730, CVE-2021-20277

Detections

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